Hi Alex, I will attempt to address point number two from my previous post:
Concerning the phrase, bə·‘e·ṣem hay·yō·wm haz·zeh, it is found in Exodus 12:17 where its placement in the context should not be overlooked or underestimated. When the phrase is understood as "in the body of this day" it strongly implies in this context that the day spoken of concerns seven days in one greater day even though it is not called a week:
Exodus 12:13-19
13. And the blood shall be to you for a token upon the houses where you are: and when I see the blood, I will pass over you, and the plague shall not be upon you to destroy you when I smite the land of Egypt.
14. And this day shall be unto you for a memorial; and you shall keep it a feast to HaShem throughout your generations, you shall keep it a feast by an ordinance forever:
15. Seven days shall you eat matzot; moreover, the first day you shall put away leaven out of your houses, for whosoever eats anything leavened from the first day until the seventh day, that soul shall be cut off from Yisrael.
16. And in the first day [is] a mikra-kodesh holy convocation, and in the seventh day shall be a mikra-kodesh holy convocation to you; no manner of work shall be done in them, save that which every man must eat, that only may be done of you.
17. And you shall observe ha-matzot; for in the body of this day (bə·‘e·ṣem hay·yō·wm haz·zeh) I do bring your armies out of the land of Egypt: therefore shall you observe this day in your generations by an ordinance forever:
18. In the first month, on the fourteenth day of the month at evening, you shall eat matzot, until the one and twentieth day of the month at evening:
19. Seven days there shall be no leaven found in your houses; for whosoever eats that which is leavened, even that soul shall be cut off from the congregation of Yisrael, whether he be a stranger, or born in the land.
Exodus 13:6
6. Seven days you shalt eat matzot; and in the seventh day [is] a feast to HaShem.
In the first day is a feast, and in the seventh day is a feast, and the etsem-body of this great day is the whole seven days; the fourteenth day of the first month, at evening, until the twenty first day of the month, at evening. And not only of the lamb shall an etsem-bone of it not be broken; but of the etsem-body of that great day an etsem-bone of all the ordinances thereof shall not be broken; even the whole etsem-body of the great day which is seven days with a feast and a feast in the first and seventh days.
Therefore when I read the events concerning Passover Unleavened Bread as recorded in the Gospel accounts I see all seven days in the day of the feast because I see the whole as the etsem-body of the seven days in the one great day of the feast, (and I do believe this is how the apostolic writers also see it in their writings). For example I do I find a conflict when some of the talmidim may have supposed that Yhudas was going out to buy what might be needed for the remainder of the feast, as in John 13:29, because it was not the night of the first mikra kodesh. Neither do I see a conflict with the Preparation Day mentioned in John 19:31 because I understand that Preparation Day as Friday, 20 Abib, the Preparation for the great high Shabbat Gadol and
feast of the final day of the Passover, (Exodus 13:6).

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Daq,
I know that some believers would disdain this idea of “day” here referring to the “the body of this day,” (and hence the whole seven day feast), but I am not among them. I know that scriptures can often have certain shades of meaning, and it’s not always just one thing. However I believe your "day" meaning the whole week explanation does not fit the scriptures here for the following reasons:
That verse in Exodus 12:14 with “this day” is clearly referring to the previous verse where God told them to place the blood of the lamb over their doorposts, and He would then “pass over” them around midnight (i.e. that midnight after the Passover sacrifice, which would be the 15th day at sunset).
NIV Exodus 12:13 The blood will be a sign for you on the houses where you are; and
when I see the blood, I will pass over you. No destructive plague will touch you when I strike Egypt.
NIV Exodus 12:14 "This is
a day you are to commemorate; for the generations to come you shall celebrate it as a festival to the LORD-- a lasting ordinance.
In Numbers 33:3 we again see “this day” specified as the 15th day when God passed over and they left Egypt, this day that was to be a special memorial kept as a High Sabbath throughout their generations:
NAS Numbers 33:3 And they journeyed from Rameses in the first month, on the
fifteenth day of the first month; on the next day after the Passover the sons of Israel started out boldly in the sight of all the Egyptians,
This is the same 15th day spoken of in Exodus:
NAS Exodus 12:17 'You shall also observe the
Feast of Unleavened Bread,
for on this very day I brought your hosts out of the land of Egypt; therefore you shall observe this day throughout your generations as a permanent ordinance.
This is why this 15th day is kept as a holy convocation (Miqra) because it was this 15th day memorial in which God saw the blood on their door posts and passed over. God wanted this day kept as a special day, unique unto itself, and kept as a Sabbath. The other days in this seven day Festival were not kept as a Sabbath, except the seventh day. So “this day” cannot refer to the whole week, otherwise every day in the week would be kept as this Sabbath memorial:
NAS Numbers 29:12 'Then on the
fifteenth day of the seventh month you shall have a holy convocation; you shall do no laborious work, and you shall observe a feast to the LORD for seven days.
You are right that not many see these things as you do, and I truly appreciate when someone seeks to view things outside the box and test things, but I think you would agree that our views must always align with the scripture, for the Messiah said the scripture cannot be broken.
You then write:
For example I do I find a conflict when some of the talmidim may have supposed that Yhudas was going out to buy what might be needed for the remainder of the feast, as in
John 13:29, because it was not the night of the first mikra kodesh. (end quote)
I think you meant to say “I do
not find a conflict…” , and if so I do agree with you here J
Then you wrote:
Neither do I see a conflict with the Preparation Day mentioned in
John 19:31 because I understand that Preparation Day as Friday, 20 Abib, the Preparation for the great high Shabbat Gadol and
feast of the final day of the Passover, (
Exodus 13:6). (end quote)
So Daq based on this you are saying that the Messiah was not crucified on the 14th day, but rather on the 20th day? To me it seems like there is too much typology involved to say that God did not command the 14th day Passover sacrifice to Moses because of his foreknowledge, knowing His son would be crucified this day (which was the preparation for the 15th day Sabbath):
NAS Acts 2:23 this
Man, delivered up
by the predetermined plan and foreknowledge of God, you nailed to a cross by the hands of godless men and put
Him to death.