Exodus 13:1-3

Amplified Bible, Classic Edition

13 The Lord said to Moses,

² Sanctify (consecrate, set apart) to Me all the firstborn [males]; whatever is first to open the womb among the Israelites, both of man and of beast, is Mine.

³ And Moses said to the people, [Earnestly] remember this day in which you came out from Egypt, out of the house of bondage and bondmen, for by strength of hand the Lord brought you out from this place; no leavened bread shall be eaten.