In Context

15 every one opening a womb of all flesh which they bring near to Jehovah, among man and among beast, is thine; only, thou dost certainly ransom the first-born of man, and the firstling of the unclean beast thou dost ransom.

16 And their ransomed ones from a son of a month, thou dost ransom with thy valuation, of silver, five shekels, by the shekel of the sanctuary, twenty gerahs it is.

17 Only, the firstling of a cow, or the firstling of a sheep, or the firstling of a goat, thou dost not ransom, holy they are: their blood thou dost sprinkle on the altar, and of their fat thou makest perfume, a fire-offering of sweet fragrance to Jehovah,

18 and their flesh is thine, as the breast of the wave-offering, and as the right leg, it is thine;

19 all the heave-offerings of the holy things which the sons of Israel lift up to Jehovah I have given to thee and to thy sons, and to thy daughters with thee, by a statute age-during, a covenant of salt, age-during it is before Jehovah, to thee and to thy seed with thee.'

20 And Jehovah saith unto Aaron, 'In their land thou dost not inherit, and a portion thou hast not in their midst: I am thy portion, and thine inheritance in the midst of the sons of Israel;

Numbers 18:18 in Other Translations