Leviticus 27:2

When a man shall make a singular vow - The verse is short and obscure, and may be translated thus: A man who shall have separated a vow, according to thy estimation, of souls unto the Lord; which may be paraphrased thus: He who shall have vowed or consecrated a soul, i. e., a living creature, whether man or beast, if he wish to redeem what he has thus vowed or consecrated, he shall ransom or redeem it according to the priest's estimation; for the priest shall judge of the properties, qualifications, and age of the person or beast, and the circumstances of the person who has vowed it, and shall regulate the value accordingly; and the money shall be put into his hands for the service of the sanctuary. A vow (says Mr. Ainsworth) is a religious promise made unto the Lord, and for the most part with prayer, and paid with thanksgiving, Numbers 21:2, Numbers 21:3; Psalm 66:12, Psalm 66:14. Vows were either of abstinence, such as are spoken of Numbers 30, and the vow of the Nazarite, Numbers 6; or they were to give something to the Lord, as sacrifices, Leviticus 7:16, or the value of persons, beasts, houses, or lands, concerning which the law is here given. A man might vow or devote himself, his children, (Leviticus 27:5, Leviticus 27:6), his domestics, his cattle, his goods, etc. And in this chapter rules are laid down for the redemption of all these things. But if, after consecrating these things, he refused to redeem them, then they became the Lord's property for ever. The persons continued all their lives devoted to the service of the sanctuary; the goods were sold for the profit of the temple or the priests; the animals, if clean, were offered in sacrifice; if not proper for sacrifice, were sold, and the price devoted to sacred uses. This is a general view of the different laws relative to vows, mentioned in this chapter.

Rather, When a man makes a special vow which concerns thy valuation of persons to Yahweh, if thy estimation shall be of the male, etc. The expression "thy estimation" is addressed either to Moses or to the priest Leviticus 27:12 : it denoted a legal valuation. The vow of a person was perhaps most frequently made in cases of illness or danger, under the impulse of religions feeling, either in the way of thankfulness for blessings received, or of supplication for something desired. A man might dedicate himself, his wife, his child, or his bondservant. This might have been an old custom; but the Law ordained that he who had taken such a vow should pay a sum of money to the sanctuary, determined according to the age and sex of the person.

27:2 A singular vow-Or, an eminent, or hard vow, not concerning things, which was customary, but concerning persons, which he devoted to the Lord, which was unusual and difficult: yet there want not instances of persons who devoted either themselves or their children, and that either more strictly, as the Nazarites, and the Levites, 1 Samuel 1:11, and for these there was no redemption admitted, but they were in person to perform the service to which they were devoted: or more largely, as some who were not Levites, might yet through zeal to God, or to obtain God's help, which they wanted or desired, devote themselves or their children to the service of God and of the sanctuary, tho' not in such a way as the Levites, which was forbidden, yet in some kind of subserviency to them. And because there might be too great a number of persons thus dedicated, which might be burdensome to the sanctuary, an exchange is allowed, and the priests are directed to receive a tax for their redemption.

By thy estimation — Thine, O man that vowest, as appears from Leviticus 27:8, where his estimation is opposed to the priest's valuation. Nor was there any fear of his partiality in his own cause, for the price is particularly limited. But where the price is undetermined, there, to avoid that inconvenience, the priest is to value it, as Leviticus 27:8,12.