Leviticus 27:26-33

26Only the firstling of the beasts, which should be Yhwh's firstling, no man shall sanctify it; whether it be ox, or sheep: it is Yhwh's.1 27And if it be of an unclean beast, then he shall redeem it according to thine estimation, and shall add a fifth part of it thereto: or if it be not redeemed, then it shall be sold according to thy estimation. 28Notwithstanding no devoted thing, that a man shall devote unto Yhwh of all that he hath, both of man and beast, and of the field of his possession, shall be sold or redeemed: every devoted thing is most holy unto Yhwh. 29None devoted, which shall be devoted of men, shall be redeemed; but shall surely be put to death. 30And all the tithe of the land, whether of the seed of the land, or of the fruit of the tree, is Yhwh's: it is holy unto Yhwh. 31And if a man will at all redeem ought of his tithes, he shall add thereto the fifth part thereof. 32And concerning the tithe of the herd, or of the flock, even of whatsoever passeth under the rod, the tenth shall be holy unto Yhwh. 33He shall not search whether it be good or bad, neither shall he change it: and if he change it at all, then both it and the change thereof shall be holy; it shall not be redeemed.