19 And the priest shall adjure her, and say unto the woman, If no man have lain with thee, and if thou hast not gone astray in uncleanness, in being with another instead of thy husband, be free from this bitter water that bringeth the curse. 20 But if thou hast gone astray to another instead of thy husband, and hast been defiled, and a man other than thy husband have lain with thee, 21 —then the priest shall adjure the woman with the oath of cursing, and the priest shall say unto the woman: Jehovah make thee a curse and an oath among thy people, when Jehovah doth make thy thigh to shrink, and thy belly to swell; 22 and this water that bringeth the curse shall enter into thy bowels, to make the belly to swell, and the thigh to shrink. And the woman shall say, Amen, amen.
Matthew Henry's Commentary on Numbers 5:19-22
Commentary on Numbers 5:11-31
(Read Numbers 5:11-31)
This law would make the women of Israel watch against giving cause for suspicion. On the other hand, it would hinder the cruel treatment such suspicions might occasion. It would also hinder the guilty from escaping, and the innocent from coming under just suspicion. When no proof could be brought, the wife was called on to make this solemn appeal to a heart-searching God. No woman, if she were guilty, could say "Amen" to the adjuration, and drink the water after it, unless she disbelieved the truth of God, or defied his justice. The water is called the bitter water, because it caused the curse. Thus sin is called an evil and a bitter thing. Let all that meddle with forbidden pleasures, know that they will be bitterness in the latter end. From the whole learn, 1. Secret sins are known to God, and sometimes are strangely brought to light in this life; and that there is a day coming when God will, by Christ, judge the secrets of men according to the gospel, Romans 2:16. 2 In particular, Whoremongers and adulterers God will surely judge. Though we have not now the waters of jealousy, yet we have God's word, which ought to be as great a terror. Sensual lusts will end in bitterness. 3. God will manifest the innocency of the innocent. The same providence is for good to some, and for hurt to others. And it will answer the purposes which God intends.