Was Jesus Christ crucified on the 14th of Nisan (April 3, 33) or the 15th (April 4, 33)?

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Writing in The Mystery Of The Last Supper, Professor Sir Colin Humphreys, a scientist at the University of Cambridge, proposes a new solution, based on a combination of Biblical, historical and astronomical research. He urgues that Jesus used a different calendar and crucifixion took place in the 14th of Nisan (April 3, 33 CE) of the official Babylonian-influenced post-exilic Jewish calendar. He explains:

" I have worked with an expert astronomer to investigate, for the first time, the possibility that a third Jewish calendar was in use in the first century A.D. The official Jewish calendar at the time of Jesus' death was that still used by Jews today: a lunar system in which days run from sunset to sunset. This was developed during the Jewish exile in Babylon in the sixth century B.C. Before that, however, the Jews had a different system. This is referred to in the Book of Exodus, in the Old Testament, when God instructs Moses and Aaron to start their year at the time of the Exodus from Egypt.

There is extensive evidence that this original Jewish calendar survived to Jesus' time. It was used by groups such as the Samaritans, Zealots, some Galileans and some Essenes. Under this pre-exilic calendar, Passover always fell a few days earlier than in the official Jewish calendar, and the days were marked from sunrise to sunrise, not sunset to sunset.

Using our reconstruction of this calendar we can see that in A.D. 33, the year of the Crucifixion, the Passover meal was on the Wednesday of Holy Week. From the clues they give, it's clear that Matthew, Mark and Luke all used the pre-exilic calendar in their description of the Last Supper as a Passover meal, whereas John uses the official calendar in which the Last Supper was before the Passover.

Holy Thursday is the well-known day on which Christians annually commemorate the Last Supper of Jesus. But my research shows that we should really be celebrating this on the Wednesday of Holy Week. A Wednesday Last Supper with the Crucifixion on Friday also allows just the right amount of time for all the events the Gospels record between the Last Supper and the Crucifixion".

nasraya 391

Upvote:-1

The AD 33 date is problematic for this very reason, and the short answer is, both days are wrong! Jesus was indeed crucified after the paschal meal on the 15th day of Nisan. However, it could not have been in the year AD 33, because on that occasion it fell on a Sabbath.

This question raises a matter that has been a frequent source of misunderstanding. Was Passover held on the 14th or was it the 15th of Nisan? Simply stated, it commenced just before one day finished and the next began. The Hebrew day began at sunset, and the lambs were slain late on the 14th, with the actual Passover meal being eaten later that evening, that is to say, early on the 15th day. The Jewish historian Josephus said the sacrifices were carried out between 3 pm and 5 pm, and the original description in Exodus bears this out.

“And you shall keep (the lamb) until the fourteenth day of this month, when the whole assembly of the congregation of Israel shall kill their lambs at twilight. Then they shall take some of the blood and put it on the two doorposts and the lintel of the houses in which they eat it. They shall eat the flesh that night, roasted on the fire; with unleavened bread and bitter herbs they shall eat it. ... In this manner you shall eat it: with your belt fastened, your sandals on your feet, and your staff in your hand. And you shall eat it in haste. It is the LORD’s Passover.” (Exodus12:6-11)

An example of this is found in King Josiah’s famous Passover, which describes in detail the sacrifices continuing until nightfall. (2 Chron. 35 1-14) Leviticus is also clear. “The LORD’s Passover begins at twilight on the fourteenth day of the first month. On the fifteenth day of that month the LORD’s Festival of Unleavened Bread begins.” (Leviticus 23:4-6) However, other Bible references simply say, “the fourteenth” without specifying the last portion of the day. That is why casual readers, not familiar with Hebrew practice, assume Passover to be the entire fourteenth day. Not so! It started in the final hours of the fourteenth then spanned the fifteenth day, synonymous with (the same as) the first day of unleavened bread.

Accordingly, Jesus ate his last supper with the disciples in the evening early on Passover day and was crucified later on the same day. By western reckoning, it was a Thursday/Friday crossover but by Jewish reckoning, it was the 15th of Nisan. It looked approximately like this:

6 pm Day began.
9 pm Passover meal.
12pm Jesus arrested.
6 am Judgement passed.
9 am Jesus crucified.
12am Great darkness.
3 pm Jesus dies.
6 pm Day ended.

At this juncture, we must address the confusion stemming from an apparent contradiction between St. John’s account and that of the synoptic gospels. He said:

“Then they led Jesus from the house of Caiaphas to the governor’s headquarters. It was early morning. They themselves did not enter the governor’s headquarters, so that they would not be defiled, but could eat the Passover.” (John 18:28)

Non-Jewish readers may be excused for interjecting, “But hadn’t they eaten it the night before”? That is when Matthew, Mark and Luke said it took place. Some commentators just choose to ignore John, but others make much of it, claiming the Paschal lambs were slain when Jesus died. Still others suggest there may have been several Jewish factions observing different timetables. Such explanations are unnecessary.

John was simply referring loosely to the overall ‘Passover week’ which included the feast days following the actual Passover day. On the morning of the first day following the Paschal evening, was another meal called ‘Chagigah’. This is the meal John was referring to, and as one rabbinic expert noted, “the Chagigah might not be offered by any person who had contracted Levitical defilement.” (The Temple, Alfred Edersheim, ch. X111) So, the ‘contradiction’ is really no contradiction at all; it was a special morning meal eaten as part of the celebration.

Again, the answer to the original question is that both days are wrong. For those who wish use Passover and astronomical data to pinpoint the crucifixion, may I suggest that you look beyond the commonly quoted year of AD 33?

Christian Gedge 300

Upvote:-1

Scripture is explicitly clear that Passover is Nisan 14th. Nisan 15th is the High Sabbath of Feast of Unleavened Bread, and no work could be done, this includes cooking, buying and selling and burying a body. The question is a bit unclear, and has several assumptions built in. In the body of the original question, there are 2 assumptions, which create problems.

The assumption of the year 33 AD, and
the Assumption the crucifixion was a Friday.

The entire problem of the confusion about Christ's death, burial and resurrection comes from a lack of understanding of Jewish culture and holidays. First off - In Hebrew, all the 7 feasts are Shabbat - the root of our word Sabbath. So we have weekly Shabbat, and then the 7 feasts which are also Shabbat - Day of Atonement, Pentecost, Feast of Booths, etc.

All feasts are Shabbat, but not all are high sabbath, or more specifically - on some, no work was allowed all all, not even cooking. Passover is a feast, but is there is a lot of work involved in making a fire and slaughtering a lamb, before the priests did this in the temple. Passover was the day of Preparation before the High Sabbath of Feast of Unleavened Bread in which no work could be done. The special commands of "no servile work" was not given for Passover.

https://www.blueletterbible.org/faq/crux.cfm "Please note, the Passover is not a High Sabbath day, this important fact is often overlooked. You can tell because the usual command for a sabbath of "an holy convocation and no servile work is to be done," is not given for Passover. So while Passover is a feast day, it is not a sabbath day."

It was however given for Feast of Unleavened Bread, Nisan 15th. This also included no buying or selling, nor burying a body. Dick H cites 2 passages that mention "the day before the Sabbath". He cited these passages as evidence that the crucifixion was Friday, but it's the same mistake the Church made. The church assumed this was the weekly Sabbath, but in the original Greek, Matthew 28:1 says Sabbaths plural.

"What the Bible says about After the Sabbaths (From Forerunner Commentary) Matthew 28:1 provides additional proof of two Sabbaths occurring that week. However, the Bible's translators, confused by the Greek wording of this verse, have consistently mistranslated it. Matthew writes, "Now after the Sabbath, as the first day of the week began to dawn . . . ." The wording of the original text, though, reads, "after the Sabbaths" - plural! Richard T. Ritenbaugh"

There are two nails in the coffin of the Friday Myth.

First is the words of Christ himself - The only sign that Christ gave that He was the Messiah was the sign of the Prophet Jonah. What was the sign of Jonah?

Jonah 17:1 And the Lord appointed a great fish to swallow up Jonah. And Jonah was in the belly of the fish three days and three nights." Christ quotes Jonah and repeats the exact words from the Prophet, in Matthew 12:40 "For as Jonah was three days and three nights in the whale's belly; so shall the Son of man be three days and three nights in the heart of the earth. (Matthew 12:40) "What about the sign of Jonah?

"Was the prophet in the great fish's belly for a complete 72 hours? The marginal note in Bullinger's Companion Bible for Jonah 1:17 reads: "Three days and three nights. The Hebrew idiom 'three days' can be used for parts of three days (and even of years): but not when the word 'nights' is added" (our emphasis). By the addition of "nights," the expression becomes more specific, precluding the idea of "parts" of days!" https://www.bibletools.org/index.cfm/fuseaction/Library.sr/CT/CGGBOOKLETS/k/419/After-Three-Days.htm Multiple Jewish rabbis confirm that typical custom of "Jewish inclusive reckoning" - counting parts of a day as a whole day - does not apply in passages where the text explicitly says 3 days and 3 nights, or 40 days and 40 nights, etc.

The second nail in the coffin of the Friday myth is the spices.

The text explicitly says the "women rested on the sabbath" and then "bought spices after the Sabbath". This is not possible at all with a Friday crucifixion - just before sundown.

In the first century, the only light besides the sun, moon and stars was candles/ torches. It was forbidden to buy and sell on the weekly Sabbath. Think about it.

Merchants would not have taken all their goods to the market, and set up shop in the dark after the sabbath ended on Saturday night. It was not only impractical, but a safety risk of being robbed.

This is also why a Thursday crucifixion doesn't work at all.

The women rested on the high sabbath of Unleavened bread, - Wed night & Thursday Day.

Bought spices on Friday, "After the Sabbath" -being after the high Sabbath of Unleavened bread. Then they rested on the Weekly Sabbath of Friday evening, Saturday day.

Also, the points made by multiple people that there were at least 3 calendars in use at the time are correct. Besides the calendar used by the Romans - there was a calendar used by the Essenes, the Pharisees and the Sadducees.
This is also confirmed by the Jewish historian Josephus who wrote of the hundreds of thousands of people in Jerusalem for Passover. It would have been physically impossible for all the priests to sacrifice all the lambs on one day.

This also explains the issue of how Christ and his disciples ate the Passover meal, and yet he was crucified on Passover.

A 33 AD crucifixion also is a huge problem because it makes Christ too old. He was born about 3 or 4 BC, and scripture says that he was about 30 when we started his ministry and the Gospels record 3 Passovers in his ministry, so this fits with a 30 AD date and age of 33.

Furthermore, in Jewish burial customs, it is believed that the spirit lingers near the body for 3 days, and one could be in a coma. After 3 days - the spirit does not remain, and thus making resurrection impossible. This is why the "resurrection" cannot be explained by the "Coma theory" but most importantly, we see three examples in scripture of someone dying and being dead for at least 3 days and 3 nights.

Christ
Lazarus
and the 2 witnesses in Revelation 11:3-12.

Tennman7 559

Upvote:0

Jesus was crusified according to scriptures from old testament and new testment 14 Nissan second part of the day, Levi 23: 5. Its a symbolic feast but in Him Jesus bore the sins of the world. There is prophecy in Daniel 9 : 27He will confirm a covenant with many for one 'seven.' In the middle of the 'seven' he will put an end to sacrifice and offering. To fulfill gods word jusus crucified on cross 14 the of Nissan. In john 22: 1, 8, 15. Conforms it as well as some more scriptures in mark . Matthew. Luke. and corintians gospel...

Yakobu Didla 21

Upvote:0

The bottom line of my answer is that John is factually accurate and that he intentionally deviated from the Synoptics for the purpose of noting important theological meaning, not for the sake of dating accuracy itself.

There are two possible chronologies, which I will call C14 and C15.

C14: Crucifixion on 14 Nisan. It implies, with Nisan dates reckoned as per the Jewish official calendar:

13 Nisan: from Wed. sunset to Thursday sunset.
14 Nisan: from Thursday sunset to Friday sunset.
15 Nisan: from Friday sunset to Saturday sunset (regular weekly Sabbath).
The Last Supper was held one day before the time of the Passover meal according to the Jewish official calendar.
Jesus died when the Paschal lambs where being sacrificed in the Temple.
The information about dates provided by John is factually accurate, while that provided by the Synoptics is not.

C15: Crucifixion on 15 Nisan. It implies, with Nisan dates reckoned as per the Jewish official calendar:

14 Nisan: from Wed. sunset to Thursday sunset.
15 Nisan: from Thursday sunset to Friday sunset.
16 Nisan: from Friday sunset to Saturday sunset (regular weekly Sabbath).
The Last Supper was held at the time of the Passover meal according to the Jewish official calendar.
The information about dates provided by the Synoptics is factually accurate, while that provided by John either is not accurate or requires heavy hermeneutic work to make it compatible with the Synoptics.

Whereas two detailed answers to a similar question in hermeneutics.stackexchange.com, by Jas 3.1 and Joseph, argue for C15, I will argue for C14. Specifically, I will argue that there is some key information in John, not taken into account in previous answers, which cannot be made compatible with C15.

First of all, for the purpose of this discussion I will assume an agnostic position about the year of the Crucifixion, as the issue of the Crucifixion being either on Friday April 7, 30 AD or on Friday April 3, 33 AD is wholly irrelevant to the subject of this discussion.

I will assume as an agreed starting point that when Jews refer to a specific date as "the Passover" they mean 15 Nisan, so that when they date an event as occurring "six days before the Passover" they mean that the event occurred on 9 Nisan. This is key for my argument because John dates a specific event that way: the supper that Lazarus and his sisters Mary and Martha made for Jesus in Bethany, during the course of which Mary anointed Jesus:

Jesus, therefore, six days before the Passover, came to Bethany where Lazarus was, whom Jesus had raised from the dead. So they made Him a supper there, and Martha was serving; but Lazarus was one of those reclining at the table with Him. Mary then took a pound of very costly perfume of pure nard, and anointed the feet of Jesus and wiped His feet with her hair; and the house was filled with the fragrance of the perfume. But Judas Iscariot, one of His disciples, who was intending to betray Him, said, “Why was this perfume not sold for three hundred denarii and given to poor people?” Now he said this, not because he was concerned about the poor, but because he was a thief, and as he had the money box, he used to pilfer what was put into it. Therefore Jesus said, “Let her alone, so that she may keep it for the day of My burial. For you always have the poor with you, but you do not always have Me.”

The large crowd of the Jews then learned that He was there; and they came, not for Jesus’ sake only, but that they might also see Lazarus, whom He raised from the dead. (John 12:1-9. NASB.)

Now, lets reckon the day of week of that supper in both possible chronologies working backwards:

C14:

15 Nisan: from Friday sunset to Saturday sunset (regular weekly Sabbath).
14 Nisan: from Thursday sunset to Friday sunset.
13 Nisan: from Wed. sunset to Thursday sunset.
12 Nisan: from Tuesday sunset to Wed. sunset.
11 Nisan: from Monday sunset to Tuesday sunset.
10 Nisan: from Sunday sunset to Monday sunset.
09 Nisan: from Saturday sunset to Sunday sunset.

In this chronology, the event is perfectly compatible with Sabbath observance for both the hosts of the supper and "the large crowd of the Jews" that went from Jerusalem to Bethany to see Jesus and Lazarus.

C15:

16 Nisan: from Friday sunset to Saturday sunset (regular weekly Sabbath).
15 Nisan: from Thursday sunset to Friday sunset.
14 Nisan: from Wed. sunset to Thursday sunset.
13 Nisan: from Tuesday sunset to Wed. sunset.
12 Nisan: from Monday sunset to Tuesday sunset.
11 Nisan: from Sunday sunset to Monday sunset.
10 Nisan: from Saturday sunset to Sunday sunset.
09 Nisan: from Friday sunset to Saturday sunset (regular weekly Sabbath).

In this chronology, the event is wholly incompatible with Sabbath observance for both the hosts of the supper and "the large crowd of the Jews" that went from Jerusalem to Bethany to see Jesus and Lazarus, as the distance from Jerusalem to Bethany exceeds what Jews are allowed to travel on a Sabbath.

Since I stated the teleological side of my argument, i.e. the reason why John intentionally deviated from the Synoptics, as the purpose of noting important theological meaning, and as the straightforward theological meaning in C14 and not in C15 is that in the former Jesus died when the paschal lambs where being sacrificed in the Temple, my argument would be strengthened if I could show that John provides another chronological coincidence between the paschal lambs and Jesus. And indeed he does.

Let's quote John's narrative of Jesus' entrance to Jerusalem, which follows right after the supper in Bethany:

On the next day the large crowd who had come to the feast, when they heard that Jesus was coming to Jerusalem, took the branches of the palm trees and went out to meet Him, and began to shout, “Hosanna! BLESSED IS HE WHO COMES IN THE NAME OF THE LORD, even the King of Israel.” Jesus, finding a young donkey, sat on it; as it is written, “FEAR NOT, DAUGHTER OF ZION; BEHOLD, YOUR KING IS COMING, SEATED ON A DONKEY’S COLT.” (John 12:12-15. NASB.)

Thus, Jesus entered Jerusalem on 10 Nisan. Let's read now the instructions in Exodus for the preparation of the paschal lamb:

Now the LORD said to Moses and Aaron in the land of Egypt, “This month shall be the beginning of months for you; it is to be the first month of the year to you. Speak to all the congregation of Israel, saying, ‘On the tenth of this month they are each one to take a lamb for themselves, according to their fathers’ households, a lamb for each household. Now if the household is too small for a lamb, then he and his neighbor nearest to his house are to take one according to the number of persons in them; according to what each man should eat, you are to divide the lamb. Your lamb shall be an unblemished male a year old; you may take it from the sheep or from the goats. You shall keep it until the fourteenth day of the same month, then the whole assembly of the congregation of Israel is to kill it at twilight. (Exodus 12:1-6)

Thus, on 10 Nisan the large number of lambs that were being kept grazing in the fields around Jerusalem for the feast were brought into the city so that each household could buy one for themselves. Therefore, Jesus entered Jerusalem at the same time as the paschal lambs were entering the city.

Johannes 1713

Upvote:0

Jesus is believed to have had a 3 year public ministry as the Messiah ending in crucifixion. In Luke 3 Jesus was baptized, which was the start of that public ministry, in the 15th year of Tiberias, who was governor over the Syriani province then, and his 15th year was 27 CE. This would place the crucifixion in 30 CE.

Tiberius' 15th year spanned the last 4 months of A.D. 26 (when Christ was baptized just after His 30th birthday) to the first 8 months of A.D. 27, and Tiberius' 18th year spanned the last 4 months of A.D. 29 into the first 8 months of A.D. 30 (when Christ was crucified on April 3rd).

http://theos-sphragis.info/years_of_tiberius_timeline.html

There is Talmudic evidence for the Messiah being crucified in 30 C.E. Both the Jerusalem and the Babylonian Talmud record strange temple events that began 40 years before the destruction of the temple in 70 CE.

"Every night for 40 years (over 12,500 nights in a row) the main lamp of the Temple lampstand (menorah) went out of its own accord no matter what attempts and precautions the priests took to safeguard against this event!"

"the Temple doors swung open every night of their own accord. This too occurred for forty years, beginning in 30 CE The leading Jewish authority of that time, Yohanan ben Zakkai, declared that this was a sign of impending doom, that the Temple itself would be destroyed."

"Each year the red cloth on the Temple door turned white as if to signify the atonement of another Yom Kippur was acceptable to the Lord. This annual event happened until 30 CE when the cloth then remained crimson each year to the time of the Temple's destruction."

"a random choosing of the "lot" which was cast on the Day of Atonement (Yom Kippur). The lot chosen determined which of two goats would be "for the Lord" and which goat would be the "Azazel" or "scapegoat." During the two hundred years before 30 CE, when the High Priest picked one of two stones, again this selection was governed by chance, and each year the priest would select a black stone as often as a white stone. But for forty years in a row, beginning in 30 CE, the High Priest always picked the black stone! The odds against this happening are astronomical (2 to the 40th power). In other words, the chances of this occurring are 1 in approximately 5,479,548,800 or about 5.5 billion to one! By comparison, your chances of winning your local state or municipal-run cash Lottery would be much more favorable! The lot for Azazel, the black stone, contrary to all the laws of chance, came up 40 times in a row from 30 to 70 AD"

http://www.3dbibleproject.com/en/temple/details/evidence.htm

Now what event could have led to these circumstance? In Matthew 27 we read immediately after Jesus died on the cross the great veil that separated the Holy of Hollies ripped from top to bottom. Temple sacrifices were only a precursor to the actual sacrifice that took away sins, that of Jesus Christ, and a priest making sacrifices to intercede for the people was finished when Christ became the final sacrifice, and Jesus is our mediator.

In any event, it appears that Jesus began a 3 year public ministry as the Messiah in 27 CE (the 15th year of Tiberius) and was crucified in 30 CE, and the Talmud seems to point to that date as a monumental change in how God treated the temple.

DDover 123

Upvote:1

The crucifixion happened on 3rd April AD 33, 14th Nisan. (The OP misunderstands the problem.. the Julian date would not change, only the Nisan date.)

The following is a table for all the "possible" dates between AD 30 and AD 34.

To explain: every lunar month has either 29 or 30 days. The Jewish month began with the first sighting of the new crescent moon after the disappearance at New Moon. This sighting relied on a clear sky. Clear skies could be relied on in the summer, but less so from autumn to spring ( and much less so in winter). When the skies were cloudy the priesthood had to decide whether the previous month would have 29 or 30 days. Their decision would of course affect the Nisan dates for the following month by one day. However it must be stressed that only a few miles east of Jerusalem in the wilderness down to the Jordan river clear skies are and probably were very common even in winter.

In order to get all possible Fridays in the time frame it is necessary to assume firstly the Nisan date for a clear sky and secondly the possible date for a cloudy sky and a consequent changed date. (The date would not have necessarily been changed, but it might have.)

Assuming a clear sky accurate sighting:-

Year.........Julian........Nisan............number

(AD)........Date..........date of..........of days

...................................Friday...........in previous

...................................during...........month

...................................Passover

...................................week

30...............7 April...14th................30

31..............27 April...16th................29

32..............18 April...(18th)..............(Can be discounted)

33...............3 April...14th................29

34..............23 April...15th................29

Assuming cloud cover at the start of month and a consequent change of day

30...............7 April...15th

31..............27 April...15th

33...............3 April...13th

34..............23 April...14th

I am only interested where the crucifixion happened on a Friday (see Luke 13:32).

From the above table it can be seen that Friday 14th Nisan "could" have happened in ADs 30, 33 and 34 and Friday 15th Nisan "could" have happened in ADs 30, 31, or 34. Friday 15th Nisan could not have happened in AD 33.

Josephus tells us the lambs were slaughtered in the temple on the afternoon of Nisan 14th. Yet I believe our Lord was crucified 14th Nisan AD 33. This creates a problem: was the Last Supper a passover meal including a sacrificed lamb? I think scripture says clearly "yes". Was it celebrated at the same time as the majority of the Jews' celebration? I now think "probably not". In the book of Colin Humphreys, "The Mystery of the Last Supper", on page 221, a possible clue is given in the "Tosefta Pesahim, 4.8":

'The Tosefta Pesahim supplements the teaching of the Mishnah about the Passover and it contains a section concerning Passover sacrifices performed at the wrong time which states: "The Passover which is slaughtered on the morning of the 14th [of Nisan] not under its [proper] designation ["under some other name"]: Rabbi Joshua validates [it], like those offered by people who say that Passover can be slaughtered on the 13th" [Tosefta Pesahim 4.8].

In other words, some Jews, maybe only in some years, sacrificed the lambs on the 13th and this was accepted as valid.

Whatever the reason, there are at least three good reasons for believing the crucifixion was in AD 33 :-

Firstly there was a red moon on the evening of 3rd April a few hours after the crucifixion.

Secondly, the hours of darkness are mentioned several times by secular historians (Tertullian; Thallus writing in AD 52, in his 3rd book of histories according to Julius Africanus writing AD 221;and Phlegon's Olympiades). In Phlegon's Olympiades we are told it happened in the 4th year of the 202nd Olympiad which is AD 33. Julius Africanus quoted from the Olympiades a section no longer in existence which said this darkening if the sun happened at the time of the full moon.

And finally, if the crucifixion was on 3rd April AD 33 (Julian) then it is 490 years (70 weeks, Daniel 9:24) to the exact day from the day of obedience to the decree to rebuild Jerusalem mentioned in Ezra 7:9 to the day of the resurrection using the accurate Gregorian calendar.

Andrew Shanks 6562

Upvote:2

(In the spirit of not stating "The Truth" but what Christians believe and why...) It is my belief, and that of my church that Jesus had to have been crucified on the 14th of Nisan or He could not have been the true Passover because He wouldn't have fulfilled the sacrifice. Exodus 12:6 says

And ye shall keep it up until the fourteenth day of the 
same month: and the whole assembly of the congregation 
of Israel shall kill it in the evening.

For Christ to have fulfilled the sacrifice He had to die on the 14th.

The problem comes in determining the meaning of "in the evening". Some then as now believed it meant after sunset at the end of the 13th and the beginning of the 14th. Others believed it meant just before sunset as the 14th was ending and the 15th was beginning. cf. http://biblehub.com/commentaries/exodus/12-6.htm

Under either interpretation though, the Passover had to be killed after sunset ended the 13th and before sunset began the 15th.