Numbers 18:11-19

¹¹And this is thine: the heave-offering of their gift, even all the wave-offerings of the children of Israel; I have given them unto thee, and to thy sons and to thy daughters with thee, as a due for ever; every one that is clean in thy house may eat thereof.

¹²All the best of the oil, and all the best of the wine, and of the corn, the first part of them which they give unto the LORD, to thee have I given them.

¹³The first-ripe fruits of all that is in their land, which they bring unto the LORD, shall be thine; every one that is clean in thy house may eat thereof.

¹⁴Every thing devoted in Israel shall be thine.

¹⁵Every thing that openeth the womb, of all flesh which they offer unto the LORD, both of man and beast, shall be thine; howbeit the first-born of man shalt thou surely redeem, and the firstling of unclean beasts shalt thou redeem.

¹⁶And their redemption-money — from a month old shalt thou redeem them — shall be, according to thy valuation, five shekels of silver, after the shekel of the sanctuary — the same is twenty gerahs.

¹⁷But the firstling of an ox, or the firstling of a sheep, or the firstling of a goat, thou shalt not redeem; they are holy: thou shalt dash their blood against the altar, and shalt make their fat smoke for an offering made by fire, for a sweet savour unto the LORD.

¹⁸And the flesh of them shall be thine, as the wave-breast and as the right thigh, it shall be thine.

¹⁹All the heave-offerings of the holy things, which the children of Israel offer unto the LORD, have I given thee, and thy sons and thy daughters with thee, as a due for ever; it is an everlasting covenant of salt before the LORD unto thee and to thy seed with thee.'