Exodus 13:10 BBE

⁸  And you will say to your son in that day, It is because of what the Lord did for me when I came out of Egypt.

⁹  And this will be for a sign to you on your hand and for a mark on your brow, so that the law of the Lord may be in your mouth: for with a strong hand the Lord took you out of Egypt.

¹⁰  So let this order be kept, at the right time, from year to year.

¹¹  And when the Lord takes you into the land of Canaan, as he made his oath to you and to your fathers, and gives it to you,

¹²  You are to put on one side for the Lord every mother's first male child, the first-fruit of her body, and the first young one of every beast; every male is holy to the Lord.