Unfortunately, there's no way that Christ could have been crucified on any day but Friday unless you argue that the Bible is just plain wrong in several places.
It is made clear by all of the gospels that Jesus and the thieves were taken down from the crosses and buried before sundown, because that was the start of the Jewish Sabbath, which begins Friday evening at sundown and runs over into Saturday. All of the gospels make this point clearly.
Therefore, it is not just a later Catholic convention that Good Friday took place on a Friday, but it can be established by the Bible itself.
The Bible also makes clear that Easter took place on Sunday, because that was the third day after the Crucifixion. Again, this can be established by the biblical text.
Changing the Sabbath from Saturday to Sunday was, of course, in honor of Easter. The day that Christ rose from the dead was taken as the new day to be celebrated as holy.
Jews, of course, continue to observe the sabbath on its original Saturday. But from the earliest days Christians marked Sunday as their holy day.
There have been various debates over the centuries about the proper date for Easter. As I said earlier, the Catholic Church and the Orthodox Churches do not have the same rules for establishing the proper day. And in the middle ages there was a disparity between the Church of Rome and the Church in Ireland, which was settled by making the Irish observe the Roman calendar. To some degree, this is arbitrary. Since Easter has always been observed on a Sunday, the date inevitably varies, and rules have to be made to determine when it should be observed. The Roman Catholic Church could, conceivably, change its method of calculation, but as yet it has not. And I can't conceive that they would move it from Sunday, since that is when the Bible indicates that the first Easter took place.
The Four Gospels agree in stating the the Lord was laid in the Sepulchre on the Preparation Day, Nisan 14th, immediately before the High Sabbath of the 15th. Therefore He must have been crucified on Wednesday, 14th of Nisan. E.W. Bullinger (Companion Bible)
You stated: The Bible also makes clear that Easter took place on Sunday, because that was the third day after the Crucifixion. Again, this can be established by the biblical text.
Nothing to do with God took place on "easter" or Sunday. It was on Passover, on the Sabbath, Saturday. Sunday was to worship the sun, easter was in honor of a pagan fertility goddess Ishtar and if you knew the rites connected with it you would be ashamed that Christianity observes that day. Please look easter up in your dictionary for it's true meaning.
You will find easter mentioned only one time in the Bible and that was a mistranslation. It should have been Pascha, Greek for Passover.
Christians marking Sunday for their holy day was because they wouldn't give up their sun god worship. I wonder what God thinks about that?
The correct reading is early on the first day which would be saturday after sundown.
b'shem Yah'shua
Please re-read my posting to you of #18
Why, then.....do you believe the Apostle John makes this distinction? [John 19:31] The Jews, therefore, that the bodies might not remain on the cross on the sabbath, since it was the preparation, (for that sabbath day was a great one,) asked of Pilate that their legs may be broken, and they taken away.
Then, to complicate your theory all the more....why do the women rest for the Sabbath after preparing spices [Luke 23:56] that they had to wait until the Sabbath was over..... to purchase? [Mark 16:1]
The obvious answer of course is the fact there was Two Sabbaths crucifixion week with a day in between....the day they purchased the spices after resting on the first (High) Sabbath.
In case you did not notice it on an earlier post I'm showing you the calendar again with the day of preparation on the 14th(Wednesday). The First Sabbath of Unleavened on the 15th(Thursday). The day in between to purchase spices, the 16th(Friday) and the weekly Sabbath on the 17th(Saturday)....which also was the day of resurrection.
I'm sorry, but your Friday/Sunday theory is nothing but false tradition. I have just given you Biblical proof that Our Lord was crucified on a Wednesday and resurrected three days later on a Saturday. The fact your Church does not teach this simple Bible truth should cause you great concern.