Numbers 18:17

17 But the firstborn of a cow, or the firstborn of a sheep, or the firstborn of a goat, thou shalt not ransom; they are sanctified; thou shalt sprinkle their blood upon the altar and shalt burn their fat for an offering on fire, for an acceptable savour unto the LORD.

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 thing that opens the womb in all flesh, which they shall offer unto the LORD, whether it is of men or animals, shall be thine; nevertheless the firstborn of man shalt thou surely ransom, and the firstborn of unclean animals shalt thou ransom.

16 And from a month old shalt thou effect their ransom, a ransom according to thine estimation, for the price of five shekels, after the shekel of the sanctuary, which is twenty gerahs.

17 But the firstborn of a cow, or the firstborn of a sheep, or the firstborn of a goat, thou shalt not ransom; they are sanctified; thou shalt sprinkle their blood upon the altar and shalt burn their fat for an offering on fire, for an acceptable savour unto the LORD.

18 And the flesh shall be thine, as the wave breast and as the right shoulder shall be thine.

19 All the heave offerings of the holy things, which the sons of Israel offer unto the LORD, I have given for thee and for thy sons and for thy daughters with thee, by a perpetual statute; it is a covenant of salt for ever before the LORD for thee and for thy seed with thee.