Numbers 18:15-17

New Living Translation

¹⁵ “The firstborn of every mother, whether human or animal, that is offered to the Lord will be yours. But you must always redeem your firstborn sons and the firstborn of ceremonially unclean animals. ¹⁶ Redeem them when they are one month old. The redemption price is five pieces of silver^[a] (as measured by the weight of the sanctuary shekel, which equals twenty gerahs).

¹⁷ “However, you may not redeem the firstborn of cattle, sheep, or goats. They are holy and have been set apart for the Lord. Sprinkle their blood on the altar, and burn their fat as a special gift, a pleasing aroma to the Lord.