John Gills Exposition of the Bible Commentary - Leviticus 27:19
And if he that sanctified the field shall in any wise redeem it ,.... Is desirous of it, and determined upon it at any rate, repenting that he had parted with it in this manner: then he shall add the fifth part of the money of thy estimation to it : the Jerusalem Targum is, the fifth part of the shekels of silver: that is, if he has a mind to redeem it, and is resolved on it, as soon as he has sanctified it, then, besides the fifty shekels of silver it is rated at, and might be sold... read more
Matthew Henry's Complete Commentary - Leviticus 27:14-25
Here is the law concerning real estates dedicated to the service of God by a singular vow. I. Suppose a man, in his zeal for the honour of God, should sanctify his house to God (Lev. 27:14), the house must be valued by the priest, and the money got by the sale of it was to be converted to the use of the sanctuary, which by degrees came to be greatly enriched with dedicated things, 1 Kgs. 15:15. But, if the owner be inclined to redeem it himself, he must not have it so cheap as another, but... read more