the OT way of reckoning and counting which is correct,
but it does not take into account the NT Passover Jesus instituted 24 hours prior to the OT observance and therefore must have a bearing on Jesus'death, burial and resurrection bringing it foreward. I will study this more closely for changes were made in the law during transition from OT to New.
The Lord’s Supper is <<the NT Passover>>; it is NOT <<the NT Passover>>; it is “The Lord’s Supper”.
<<<Jesus instituted … The Lord’s Supper … 24 hours prior to the OT observance>>> 100%!!!!!
<<The OT observance … of the FEAST of passover … must have (had) a bearing on Jesus' death, burial and resurrection>>> 100%!!!!!
To be exact,
Abib 14 <<had direct bearing on Jesus' DEATH>> Mark 14:12-15:41 Matthew 26:17-27:56 Luke 22:7-23:49 John 13:1-19:30 1Corinthians 11:23 …
“The day they KILLED the passover and REMOVED leaven”
Abib 15 <<had direct bearing on Jesus' BURIAL>> John 19:31-42 Mark 15:42-47 Matthew 27:57-61 Luke 23:54-56 …
“The first night” John 19:39, 1Corinthians 11:23 of “seven days no leavened bread shall be eaten” Exodus 12:15c
“the Jews” John 19:38 kept <<the OT observance>> John 28:8 cf. 19:31.
<<<changes were made in the law during transition from OT to New.>>>
The New is the exact fulfilment of the Old Testament.
The Old Testament prophesied BOTH the fourteenth and fifteenth days of the First Month;
the fourteenth for the slaughter of the sacrifice without exception; and
the fifteenth for the EATING—BURIAL—of the sacrifice in the time in between the exodus and Christ without exception.
Before the Promised land had been entered the EATING—BURIAL—is ALSO dated on the fourteenth.
At first BOTH the fourteenth and the fifteenth were
NAMED “the Selfsame Day”—“the WHOLE day”—“the BONE-day”—the BURIAL-day—and were BOTH
DATED: “the FOURTEENTH day of the First Month”.
There is NO discrepancy and NO contradiction. There is only the faithfulness of the Almighty God in his Providence VISIBLE AND MANIFEST.