18 but if he dedicates his field after the jubilee, then the priest shall calculate the price according to the years that remain until the year of jubilee, and a deduction shall be made from the valuation.

Matthew Henry's Commentary on Leviticus 27:18

Commentary on Leviticus 27:14-25

(Read Leviticus 27:14-25)

Our houses, lands, cattle, and all our substance, must be used to the glory of God. It is acceptable to him that a portion be given to support his worship, and to promote his cause. But God would not approve such a degree of zeal as ruined a man's family.