Exodus 13:8-14

8“You are to tell your son on that day saying, ‘It is because of what Adonai did for me when I came out of Egypt.

9So it will be like a sign on your hand and a reminder between your eyes, so that the Torah of Adonai may be in your mouth. For with a strong hand Adonai has brought you out of Egypt.

10You are to keep this ordinance as a moed from year to year.

11“Now when Adonai brings you into the land of the Canaanite, as He swore to you and your fathers and gives it you,

12you are to set apart to Adonai every firstborn from the womb, and every firstborn male animal you have will be Adonai’s.

13Every firstborn donkey you are to redeem with a lamb, and if you do not redeem it, then you are to break its neck. But you are to redeem every firstborn male among your sons.

14“So when your son asks you in times to come, ‘What is this?’ say to him, ‘By a strong hand Adonai brought us out from Egypt, the house of bondage,