Numbers 18:14

¹²Every first offering of oil, and every first offering of wine, their firstfruits of corn, whatsoever they may give to the Lord, to thee have I given them.

¹³All the firstfruits that are in their land, whatsoever they shall offer to the Lord, shall be thine: every clean person in thy house shall eat them.

— Numbers 18:14 —

¹⁵And everything that opens the womb of all flesh, whatsoever they bring to the Lord, whether man or beast, shall be thine: only the firstborn of men shall be surely redeemed, and thou shalt redeem the firstborn of unclean cattle.

¹⁶And the redemption of them shall be from a month old; their valuation of five shekels—it is twenty oboli according to the holy shekel.