First Day of Unleavened Bread
“In the fourteenth day of the first month at even is the LORD'S passover.” (Leviticus 23:5)
Eat the Passover
“And on the fifteenth day of the same month is the feast of unleavened bread unto the LORD: seven days ye must eat unleavened bread.” (Leviticus 23:6)
“And they journey from Rameses in the first month, on the fifteenth day of the first month, on the morrow of the passover have the sons of Israel gone out with a high hand, before the eyes of all the Egyptians—” (Numbers 33:3)
“Then the same day at evening, being the first day of the week, when the doors were shut where the disciples were assembled for fear of the Jews, came Jesus and stood in the midst, and saith unto them, Peace be unto you.” (John 20:19)