Leviticus 18:6

“None of you shall approach to any that is near of kin to him, etc.] Or to all “the rest of his flesh” f617, which together with his make one flesh, who are of the same flesh and blood with him, and are united together in the bonds of consanguinity; and such, with respect to a man, are his mother, sister, and daughter; his mother, of whom he was born, his sister, who lay in and sprung from the same “venter” he did, and his daughter, who is his own flesh; and with respect to a woman, her father brother, and son, who are in the same degree of relation, and both sexes are included in this prohibition; for though in the original text it is “a man, a man” f618, yet as it takes in every man, so…”

“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…”

“Near of kin - See the margin. The term was evidently used to denote those only who came within certain limits of consanguinity, together with those who by affinity were regarded in the same relationship. To uncover their nakedness - i. e. to have sexual intercourse. The immediate object of this law was to forbid incest. return to 'Top of Page'”

“To uncover their nakedness - I think Mr. Free has made it highly probable, that this phrase does not mean marriage, but fornication, throughout this chapter. So it unquestionably means in the twentieth chapter. Leviticus 18:16”

“18:6-7 have sexual relations with: Literally to uncover the nakedness of. Similar regulations in ch 20 use the Hebrew word shakab (“lie with”), a word frequently used to indicate an improper sexual relationship.”

“near to kin: Heb. remainder of his flesh. Notwithstanding the prohibitions here, it must be evident, that in the infancy of the world, persons very near of kin, and even brothers and sisters, must have joined in matrimonial alliances; and therefore we cannot pronounce them immoral in themselves. But, in these first instances, necessity required it; but when this necessity no longer existed, the thing became inexpedient and improper for: 1\. As human nature now is, it is very expedient that those who are so much together in youth, should, by such a restriction be taught to look upon all such intercourse as prohibited and incestuous; for unless such restrictions are made, it would be…”

“The laws against incest are introduced in Lev 18:6 with the general prohibition, descriptive of the nature of this sin, "None of you shall approach בּשׂרו אל־כּל־שׁאר to any flesh of his flesh, to uncover nakedness." The difference between שׁאר flesh, and בּשׂר flesh, is involved in obscurity, as both words are used in connection with edible flesh (see the Lexicons). "Flesh of his flesh" is a flesh that is of his own flesh, belongs to the same flesh as himself ( Gen 2:24), and is applied to a blood-relation, blood-relationship being called שׁארה (or flesh-kindred) in Hebrew ( Lev 18:17). Sexual intercourse is called uncovering the nakedness of another ( Eze 16:36; Eze 23:18). The prohibition…”