Numbers 18:17

17 "On the other hand, you don't redeem a firstborn ox, sheep, or goat - they are holy. Instead splash their blood on the Altar and burn their fat as a Fire-Gift, a pleasing fragrance to God.

Numbers 18:17 Meaning and Commentary

Numbers 18:17

But the firstling of a cow, or the firstling of a sheep, or
the firstling of a goat, thou shalt not redeem
That is, shalt not take the redemption price for them, but the creatures themselves; which they, the priests, were to take for their own use:

they [are] holy;
separated to the Lord, and therefore not to be used in common by men, but were sacred to the Lord, or became the property of his priests; see ( Deuteronomy 15:19 ) ; how they were to be made use of follows:

thou shalt sprinkle their blood upon the altar;
for they were to be sacrificed, and their blood used as in other sacrifices:

and shalt burn their fat [for] an offering made by fire; for a sweet
savour unto the Lord;
as the fat of other sacrifices was, and particularly of the peace offerings, which were wholly eaten otherwise, ( Leviticus 7:31 ) .

Numbers 18:17 In-Context

15 Every firstborn that is offered to God, whether animal or person, is yours. Except you don't get the firstborn itself, but its redemption price; firstborn humans and ritually clean animals are bought back and you get the redemption price.

16 When the firstborn is a month old it must be redeemed at the redemption price of five shekels of silver, using the standard of the Sanctuary shekel, which weighs twenty gerahs.

17 "On the other hand, you don't redeem a firstborn ox, sheep, or goat - they are holy. Instead splash their blood on the Altar and burn their fat as a Fire-Gift, a pleasing fragrance to God.

18 But you get the meat, just as you get the breast from the Wave-Offering and the right thigh.

19 All the holy offerings that the People of Israel set aside for God, I'm turning over to you and your children. That's the standard rule and includes both you and your children - a Covenant-of-Salt, eternal and unchangeable before God."