Exodus 12:42
It is a night to be much observed to the LORD for bringing them out from the land of Egypt: this is that night of the LORD to be observed of all the children of Israel in their generations.
Nave's Topical Index—AKJV

Exodus 13:3-16
And Moses said to the people, Remember this day, in which you came out from Egypt, out of the house of bondage; for by strength of hand the LORD brought you out from this place: there shall no leavened bread be eaten.
Nave's Topical Index—AKJV