Exodus 13:10-12

New King James Version

^10 (A)You shall therefore keep this ^[a]ordinance in its season from year to year.

The Law of the Firstborn

¹¹ “And it shall be, when the Lord ^(B)brings you into the land of the ^(C)Canaanites, as He swore to you and your fathers, and gives it to you, ^12 (D)that you shall ^[b]set apart to the Lord all that open the womb, that is, every firstborn that comes from an animal which you have; the males shall be the Lord’s.