Numbers 5:11

11.And the Lord spoke unto Moses. Although this ceremony appears to be part of the legal services, still I have thought fit to postpone it to this place, because it relates to the observance of the Seventh Commandment. The object of it is, lest women, trusting that they would escape punishment, should abandon themselves to unchastity, or lest jealousy should lead to dissension, and, by alienating the mind of the husband from the wife, should loosen the ties of pure affection, since thus the door would be open to many iniquities. By this rite, therefore, God proclaims Himself the guardian and avenger of conjugal fidelity; and hence it appears how acceptable a sacrifice in His sight is the chastity of married women, of which He condescends to profess Himself the guardian. It is, therefore, no trifling consolation to husbands, that God undertakes the cognizance of the secret wrong, if, perchance, their wives have dealt treacherously with them.

But it will be better to examine the details in order. When at the outset he says, — If a man’s wife go aside, and her offense be concealed, an absurdity appears to be implied; as if He would thus bring to judgment none but those who should be convicted, whereas, if the fact were established, there would be no use in the application of the test. But the condition, “if she commit a trespass against him,” does not signify that the woman’s adultery should be discovered, but refers to the opinion of her husband; and thus the words must be paraphrased in this way: If any one should think that his wife has had connection with another man, and he cannot otherwise be relieved from the anxiety which oppresses him, let him appeal to God for that judgment, which is beyond the reach of man. Still God (78) seems designedly to have expressed the crime, lest husbands should heedlessly involve their innocent wives in disgrace. We know that many are causelessly suspicious; and when jealousy has once taken possession of the mind, there is no room for moderation or equity. (79) Wherefore it would be inhuman to permit morose and unreasonable husbands to drag their wives to this horrible judgment of God on account of certain trifling suspicions. For, if the husband were cruel and ungodly, it would be like putting a sword into the hands of a madman, to give him such a power without any distinction. God, therefore, implies that the priest should carefully consider, so as not too easily to receive every complaint; although He afterwards more clearly expresses Himself in another part of the conditions, “if a man be jealous of his wife, and she be not defiled.”