Leviticus 27:19-27

19And if he that hallowed the field will in any wise redeem it, he shall add the fifth of the money of thy valuation unto it, and it shall be assured to him;

20but if he do not redeem the field, or if he sell the field to another man, it cannot be redeemed any more;

21and the field, when it goeth out in the jubilee, shall be holy to Jehovah, as a field devoted; the possession thereof shall be the priest's.

22And if he hallow to Jehovah a field that he hath bought, which is not of the fields of his possession,

23the priest shall reckon unto him the amount of thy valuation, unto the year of the jubilee; and he shall give thy valuation on that day, [as] holy to Jehovah.

24In the year of the jubilee the field shall return unto him of whom it was bought — to him to whom the land belonged.

25And all thy valuation shall be according to the shekel of the sanctuary: twenty gerahs shall be the shekel.

26Only the firstling which is offered as firstling to Jehovah among the cattle, that shall no man hallow, whether it be ox or sheep; it is Jehovah's.

27But if it be of an unclean beast, then he shall ransom it according to thy valuation, and shall add a fifth of it thereto; and if it be not redeemed, it shall be sold according to thy valuation.