5. Mose 22:21

OF HUMANITY TOWARD BRETHREN. (Deu 22:1-4) Thou shalt not see thy brother's ox or his sheep go astray, and hide thyself from them, &c.--"Brother" is a term of extensive application, comprehending persons of every description; not a relative, neighbor, or fellow countryman only, but any human being, known or unknown, a foreigner, and even an enemy (Exo 23:4). The duty inculcated is an act of common justice and charity, which, while it was taught by the law of nature, was more clearly and forcibly enjoined in the law delivered by God to His people. Indifference or dissimulation in the circumstances supposed would not only be cruelty to the dumb animals, but a violation of the common rights of humanity; and therefore the dictates of natural feeling, and still more the authority of the divine law, enjoined that the lost or missing property of another should be taken care of by the finder, till a proper opportunity occurred of restoring it to the owner.

If a man be found lying with a woman married to an husband,..... This law respects adultery, and is the same with that in Lev 20:10. then they shall both of them die; with the strangling of a napkin, as the Targum of Jonathan, which is the death such persons were put to; and is always meant when death is simply spoken of, and it is not specified what death; See Gill on Lev 20:10, both the man that lay with the woman, and the woman; they were both to die, and to die the same death: so shalt thou put away evil from Israel; such that do it, as the above Targum; See Gill on Deu 22:21.

The laws of this chapter provide, I. For the preservation of charity and good neighbourship, in the care of strayed or fallen cattle (Deu 22:1-4). II. For the preservation of order and distinction, that men and women should not wear one another's clothes (Deu 22:5), and that other needless mixtures should be avoided (Deu 22:9-11). III. For the preservation of birds (Deu 22:6, Deu 22:7). IV. Of life (Deu 22:8). V. Of the commandments (Deu 22:12). VI. Of the reputation of a wife abused, if she were innocent (Deu 22:13-19), but for her punishment if guilty (Deu 22:20, Deu 22:21). VII. For the preservation of the chastity of wives (Deu 22:22). Virgins betrothed (Deu 22:23-27), or not betrothed (Deu 22:28, Deu 22:29). And, lastly, against incest (Deu 22:30).

22:21 by being promiscuous (literally acting as a prostitute): A single act of sexual intercourse by an unmarried woman was enough to earn this disgraceful label and the death penalty.