The 8th day to a Hebrew is not the same as the eighth day to a Roman. But I reckon you already knew that.
Except you have failed to deal with this matter sola Scriptura. Just try exegeting Luke 24 and get us to a Saturday resurrection. It cannot happen.
My problem is solely with the Friday/Sunday equation. Jesus may very well have been resurrected on Sunday. But the starting point has to be adjusted in order to fulfill the Jonah prophesy.
Jesus being raised on Sunday does not abolish any of the 10 Commandments. Changing the Sabbath fulfills the prophesy I referenced earlier. Changing times and law.
The 8th day to a Hebrew is not the same as the eighth day to a Roman.
Please explain the difference. Hebrews and Romans both share the common notion of a seven day week. The "eighth day" is one week after the "first day".
Try to use original source material and not your own speculation. Thanks.
But the starting point has to be adjusted in order to fulfill the Jonah prophesy.
Then you still don't understand the use of Hebrew idioms of time.