John Calvin on Deuteronomy 22:30

30. A man shall not take his father’s wife. Since Moses does not here refer to any other kinds of incest, but speaks only of that with a step-mother, it is probable that, what he had more fully set forth before he here briefly recalled to the minds of the Israelites under a single head. At any rate, the prohibition of one offense does not open the gate to other abominations. The expression which he adds, “nor discover his father’s skirt,” is as much as to say, that the father is exposed to shame when the step-son has; no regard to decency, and goes in to his step-mother. Perhaps he alludes to the sin of Ham, who betrayed his ungodliness by exposing the shame of his father. (Genesis 9:22.)

These Supplements are Judicial Omitted in the French; and the ensuing verses considered under the “Political Supplements” of the Commandment.

Leviticus 20

Leviticus 20:11, 12, 14, 17, 19-24

11. And the man that lieth with his father’s wife hath uncovered his father’s nakedness: both of them shall surely be put to death; their blood shall be upon them.

11. Quicunque concubuerit cum uxore patris sui, turpitudinem patris sui revelavit: moriendo morientur ambo, sanguis eorum super eos.

12. And if a man lie with his daughter-in-law, both of them shall surely be put to death: they have wrought confusion; their blood shall be upon them.

12. Vir qui coierit cum nuru sua, moriendo morientur ambo: flagitium admiserunt, sanguis eorum super eos.

14. And if a man take a wife and her mother, it is wickedness: they shall be burnt with fire, both he and they; that there be no wickedness among you.

14. Qui acceperit mulierem et matrem ejus, scelus est: igni comburent illum et illas, ne sit scelus in medio vestri.

17. And if a man shall take his sister, his father’s daughter, or his mother’s daughter, and see her nakedness, and she see his nakedness; it is a wicked thing; and they shall be cut off ill the sight of their people: he hath uncovered his sister’s nakedness; he shall bear his iniquity.

17. Quisquis acceperit sororem suam filiam patris sui, vel filiam matris suae, et viderit turpitudinem ejus, ipsaque viderit turpitudinem illius, foeditas est: propterea succindentur ambo coram oculis populi sui: turpitudinem sororis suae revelavit, iniquitatem suam feret.

19. And thou shalt not uncover the nakedness of thy mother’s sister, nor of thy father’s sister; for he uncovereth his near kin: they shall bear their iniquity.

19. Turpitudinem sororis matris tuae et sororis patris tui, non discooperies: quia propinquam suam nudavit, iniquitatem suam portabunt.

20. And if a man shall lie with his uncle’s wife, he hath uncovered his uncle’s nakedness: they shall bear their sin; they shall die childless.

20. Quisquis dormierit cum uxore fratris patris sui, turpitudinem fratris patris sui revelavit, iniquitatem suam portabunt, orbati morientur.

21. And if a man shall take his brother’s wife, it is an unclean thing; he hath uncovered his brother’s nakedness: they shall be childless.

21. Qui acceperit uxorem fratris sui, opprobrium est, turpitudinem fratris sui revelavit, orbati erunt.

22. Ye shall therefore keep all my statutes, and all my judgments, and do them; that the land, whither I bring you to dwell therein, spew you not out.

22. Custodite itaque omnia statuta mea, et omnia judicia, et facite ea, ut non evomat vos terra in quam ego introduco vos ut illic habitetis.

23. And ye shall not walk in the manners of the nations which I cast out before you: for they committed all these things, and therefore I abhorred them.

23. Neque ambuletis in statutis gentis quam ego ejiciam a facie vestra: omnia enim ista fecerunt, et detestatus sum eas.

24. But I have said unto you, Ye shall inherit their land, and I will give it unto you to possess it, a land that floweth with milk and honey: I am the Lord your God, which have separated you from other people.

24. Vobis autem dixi, Possidebitis terram eorum, quam ego daturus sum vobis ut haereditate eam possideatis terram fluentem lacte et melle: ego Jehova Deus vester qui separavi vos a populis.