Exodus 12 17
You are to keep the Feast of Unleavened Bread because on this very day I led your tribes by their respective divisions out of Egypt. You are to observe this day for all time to come.
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YLT Exodus 12:17and ye have observed the unleavened things, for in this self-same day I have brought out your hosts from the land of Egypt, and ye have observed this day to your generations — a statute age-during.
GW Exodus 12:17You must celebrate the Festival of Unleavened Bread because it was on this very day that I brought you out of Egypt in organized family groups. This is a permanent law for future generations: You must celebrate this day.
KJV Exodus 12:17And ye shall observe the feast of unleavened bread; for in this selfsame day have I brought your armies out of the land of Egypt: therefore shall ye observe this day in your generations by an ordinance for ever.