Exodus 13:10-12

Revised Standard Version Catholic Edition

¹⁰ You shall therefore keep this ordinance at its appointed time from year to year.

The Consecration of the Firstborn

¹¹ “And when the Lord brings you into the land of the Canaanites, as he swore to you and your fathers, and shall give it to you, ¹² you shall set apart to the Lord all that first opens the womb. All the firstlings of your cattle that are males shall be the Lord’s.