Numbers 18:17 WBT

¹⁵  Every thing that openeth the matrix in all flesh, which they bring to the LORD, [whether] of men or beast, shall be thine: nevertheless, the first born of man shalt thou surely redeem, and the firstling of unclean beasts shalt thou redeem.

¹⁶  And those that are to be redeemed from a month old shalt thou redeem, according to thy estimation, for the money of five shekels, after the shekel of the sanctuary, which [is] twenty gerahs.

¹⁷  But the firstling of a cow, or the firstling of a sheep, or the firstling of a goat, thou shalt not redeem; they [are] holy: thou shalt sprinkle their blood upon the altar, and shalt burn their fat [for] an offering made by fire, for a sweet savor to the LORD.

¹⁸  And the flesh of them shall be thine, as the wave-breast and as the right shoulder are thine

¹⁹  All the heave-offerings of the holy things, which the children of Israel offer to the LORD, have I given to thee, and to thy sons and thy daughters with thee, by a statute for ever: it [is] a covenant of salt for ever before the LORD to thee and to thy seed with thee.