Exodus 13:2-4

Modern English Version

² Sanctify unto Me all the firstborn, the firstborn of every womb among the children of Israel, both of man and of beast. It is Mine.

The Feast of Unleavened Bread

³ 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. Nothing leavened shall be eaten. ⁴ On this day, you are going out, in the month of Aviv.