Exodus 12:17

Overview - Exodus 12
1	The beginning of the year is changed.
3	The passover is instituted.
11	The import of the rite of the passover.
15	Unleavened bread, etc.
29	The firstborn are slain.
31	The Israelites are driven out of the land.
37	They come to Succoth.
41	The time of their sojourning.
43	The ordinance of the passover.

Exodus 12:17  (King James Version)
And 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.