Exodus 29:46

29:46 and they will know that I am the Lord their God, who brought them out from the land of Egypt, so that I may reside among them. I am the Lord their God.

Exodus 12:17

12:17 So you will keep the Feast of Unleavened Bread, because on this very day I brought your regiments out from the land of Egypt, and so you must keep this day perpetually as a lasting ordinance.