Exodus 13:10
Therefore, you shall keep this ordinance at this time from year to year.
Exodus 12:14
‘Now this day will be a memorial to you, and you shall keep it as a feast to the Lord; throughout your generations you are to celebrate it as an ordinance forever.
Exodus 12:24-25
You shall observe this event [concerning Passover] as an ordinance for you and for your children forever.
Exodus 23:15
You shall observe the Feast of Unleavened Bread; for seven days you shall eat unleavened bread, as I commanded you, at the appointed time in the month of Abib, for in it you came out of Egypt. No one shall appear before Me empty-handed [but you shall bring sacrificial offerings].
Leviticus 23:6
The Feast of Unleavened Bread to the Lord is on the fifteenth day of the same month; for seven days you shall eat unleavened bread.
Deuteronomy 16:3-4
You shall not eat