Exodus 13:14

10You shall therefore keep this ordinance in its season from year to year.

11“It shall be, when the LORD brings you into the land of the Canaanite, as he swore to you and to your fathers, and will give it to you,

12that you shall set apart to the LORD all that opens the womb, and every firstborn that comes from an animal which you have. The males shall be the LORD’s.

13Every firstborn of a donkey you shall redeem with a lamb; and if you will not redeem it, then you shall break its neck; and you shall redeem all the firstborn of man among your sons.

14It shall be, when your son asks you in time to come, saying, ‘What is this?’ that you shall tell him, ‘By strength of hand the LORD brought us out from Egypt, from the house of bondage.

15When Pharaoh stubbornly refused to let us go, the LORD killed all the firstborn in the land of Egypt, both the firstborn of man, and the firstborn of livestock. Therefore I sacrifice to the LORD all that opens the womb, being males; but all the firstborn of my sons I redeem.’

16It shall be for a sign on your hand, and for symbols between your eyes; for by strength of hand the LORD brought us out of Egypt.”

17When Pharaoh had let the people go, God didn’t lead them by the way of the land of the Philistines, although that was near; for God said, “Lest perhaps the people change their minds when they see war, and they return to Egypt”;

18but God led the people around by the way of the wilderness by the Red Sea; and the children of Israel went up armed out of the land of Egypt.