Leviticus 18:8

The nakedness of thy father's wife shalt thou not uncover: it is thy father's nakedness.

EXPOSITORY (ENGLISH BIBLE)

Ellicott's Commentary for English Readers

(8) The nakedness of thy father’s wife.—Whilst the former prohibition refers to the son’s own mother, this law is directed against illicit commerce with his stepmother. Here we have an instance where the phrase “to uncover the nakedness” denotes both illicit commerce and incestuous marriage. Accordingly the administrators of the law during the second Temple defined it as follows; a man’s father’s wife is for ever prohibited, whether she be simply betrothed or married to his father, whether she be divorced or not, whether she be a widow or not; all connection with her on the part of the father’s son is forbidden. If he lie with her while her husband is alive, he is doubly guilty, first, because she is near of kin, and secondly, because she is another man’s wife. This, therefore, includes the sin of Reuben with Bilhah, his father’s concubine (Genesis 35:22), and of Absalom with the wives of his father (2Samuel 16:20-23; 1Kings 2:17), which was not incestuous marriage but adultery, since their husbands were alive and the wives were not divorced from them, as well as the sin practised among some of the Christians in Corinth, which consisted in sons actually marrying their divorced stepmothers in the lifetime of their fathers, and which the Apostle denounced with such severity (1Corinthians 5:1-4). Among the ancient Arabs, marriages with stepmothers were common, and to this day among some tribes in Africa, when a father is unable through advanced age to attend to his young wives, he voluntarily gives them over to his eldest son. The Koran, however, like the Mosaic law, proscribes these marriages (Koran, 4:27).

Matthew Henry's Concise Commentary

18:1-30 Unlawful marriages and fleshly lusts. - Here is a law against all conformity to the corrupt usages of the heathen. Also laws against incest, against brutal lusts, and barbarous idolatries; and the enforcement of these laws from the ruin of the Canaanites. God here gives moral precepts. Close and constant adherence to God's ordinances is the most effectual preservative from gross sin. The grace of God only will secure us; that grace is to be expected only in the use of the means of grace. Nor does He ever leave any to their hearts' lusts, till they have left him and his services.

Barnes' Notes on the Bible

Compare the case of Reuben, Genesis 49:3-4. See 1 Corinthians 5:1.

Jamieson-Fausset-Brown Bible Commentary

6. None of you shall approach to any that is near of kin to him—Very great laxity prevailed amongst the Egyptians in their sentiments and practice about the conjugal relation, as they not only openly sanctioned marriages between brothers and sisters, but even between parents and children. Such incestuous alliances Moses wisely prohibited, and his laws form the basis upon which the marriage regulations of this and other Christian nations are chiefly founded. This verse contains a general summary of all the particular prohibitions; and the forbidden intercourse is pointed out by the phrase, "to approach to." In the specified prohibitions that follow, all of which are included in this general summary, the prohibited familiarity is indicated by the phrases, to "uncover the nakedness" [Le 18:12-17], to "take" [Le 18:17, 18], and to "lie with" [Le 18:22, 23]. The phrase in this sixth verse, therefore, has the same identical meaning with each of the other three, and the marriages in reference to which it is used are those of consanguinity or too close affinity, amounting to incestuous connections.

Matthew Poole's Commentary

i.e. Thy step-mother. Examples of this are Genesis 35:22 49:4 1 Corinthians 5:1. It is thy father’s nakedness, by interest and relation; that which he only may uncover.

Gill's Exposition of the Entire Bible

The nakedness of thy father's wife shalt thou not uncover,.... That is, who is indeed a man's father's wife, but not his own mother, but a stepmother or mother-in-law; or otherwise this law would coincide with the former; a man lying with such an one is accursed by the law, Deuteronomy 27:23; such an incestuous copulation was that of Reuben with Bilhah, and Absalom with his father's concubines or secondary wives, and such an incestuous marriage was that of the Corinthians, 1 Corinthians 5:1; and of Antiochus Soter, king of Syria, with Stratonice his mother-in-law (c): and even it was criminal to do this after a father's death, as Jarchi interprets it; and though she was only betrothed, and not married, and the father dead after such betrothing; as Gersom; nay, though she was divorced by the father, yet was not lawful for the son to have, no, not after his death:

it is thy father's nakedness; being espoused to him, and so one flesh with him; and the son and father being one flesh, such a mixture must be unlawful; and since then the nakedness of a mother-in-law is the father's, then surely that of an own mother's must be so likewise, which confirms a sense given of it in Leviticus 18:7, Cicero (d) exclaims against such marriages as incredible and unheard of, as instances of unbridled lust and singular impudence.

(c) Vid. Julian. in Misopogon, p. 72, &c. (d) Orat. 14. pro A. Cluentio Avito.

Geneva Study Bible

The nakedness of thy father's {d} wife shalt thou not uncover: it is thy father's nakedness.

(d) Which is your stepmother.

EXEGETICAL (ORIGINAL LANGUAGES)

Cambridge Bible for Schools and Colleges

8. This is the one case which appears (apart from two others in the imprecations, Deuteronomy 27:22-23), but stated in different words, in Deut. (Deuteronomy 22:30 [Heb. 23:1], Deuteronomy 27:20). This has been thought to point to the code represented by the v. in Deut. as earlier than that here; but an easier explanation is to suppose that the practice, as specially prevalent at the time, needed specific prohibition. Illicit connexion with a stepmother here forbidden, was not uncommon in the polygamous East. See Driver, Deut., p. 259, for the custom in Syria and Arabia. It seems to have been still common in the time of Ezekiel (Ezekiel 22:10).

Leviticus 18:8

Keil and Delitzsch Biblical Commentary on the Old Testament

Intercourse with a father's wife, i.e., with a step-mother, is forbidden as uncovering the father's nakedness; since a father's wife stood in blood-relationship only to the son whose mother she was. But for the father's sake her nakedness was to be inaccessible to the son, and uncovering it was to be punished with death as incest (Leviticus 20:11; Deuteronomy 27:20). By the "father's wife" we are probably to understand not merely his full lawful wife, but his concubine also, since the father's bed was defiled in the latter case no less than in the former (Genesis 49:4), and an accursed crime was committed, the punishment of which was death. At all events, it cannot be inferred from Leviticus 19:20-22 and Exodus 21:9, as Knobel supposes, that a milder punishment was inflicted in this case.