Leviticus Chapter 27 Bible in Basic English
And if a man gives to the Lord part of the field which is his property, then let your value be in relation to the seed which is planted in it; a measure of barley grain will be valued at fifty shekels of silver.
But if he gives his field after the year of Jubilee, the amount of the money will be worked out by the priest in relation to the number of years till the coming year of Jubilee, and the necessary amount will be taken off your value.
And if it is an unclean beast, then the owner of it may give money to get it back, in agreement with the value fixed by you, by giving a fifth more; or if it is not taken back, let it be given for money in agreement with your valuing.
But nothing which a man has given completely to the Lord, out of all his property, of man or beast, or of the land which is his heritage, may be given away or got back in exchange for money; anything completely given is most holy to the Lord.