Numbers 18:15-17

New King James Version

¹⁵ “Everything that first opens ^(A)the womb of all flesh, which they bring to the Lord, whether man or beast, shall be yours; nevertheless ^(B)the firstborn of man you shall surely redeem, and the firstborn of unclean animals you shall redeem. ¹⁶ And those redeemed of the devoted things you shall redeem when one month old, ^(C)according to your valuation, for five shekels of silver, according to the shekel of the sanctuary, which is ^(D)twenty gerahs. ^17 (E)But the firstborn of a cow, the firstborn of a sheep, or the firstborn of a goat you shall not redeem; they are holy. ^(F)You shall sprinkle their blood on the altar, and burn their fat as an offering made by fire for a sweet aroma to the Lord.