ordered to follow marriage with an aunt, the sister of father or mother (Lev 20:19, cf. Lev 18:12-13), with an uncle's wife (Lev 20:20, cf. Lev 18:4), or with a sister-in-law, a brother's wife (Lev 20:21, cf. Lev 18:16). In all these cases the threat is simply held out, “they shall bear their iniquity,” and (according to Lev 20:20, Lev 20:21) “die childless;” that is to say, God would reserve the punishment to Himself (see at Lev 18:14). In the list of punishments no reference is made to intercourse with a mother (Lev 18:7) or a granddaughter (Lev 18:10), as it was taken for granted that the punishment of death would be inflicted in such cases as these; just as marriage with a daughter or a full sister is passed over in the prohibitions in ch. 18.
verses 22-26
The list of punishments concludes, like the prohibitions in Lev 18:24., with exhortations to observe the commandments and judgments of the Lord, and to avoid such abominations (on Lev 18:22 cf. Lev 18:3-5, Lev 18:26, Lev 18:28, Lev 18:30; and on Lev 18:23 cf. Lev 18:3 and Lev 18:24). The reason assigned for the exhortations is, that Jehovah was about to give them for a possession the fruitful land, whose inhabitants He had driven out because of their abominations, and that Jehovah was their God, who had separated Israel from the nations. For this reason (Lev 18:25) they were also to sever (make distinctions) between clean and unclean cattle and birds, and not make their souls (i.e., their persons) abominable through unclean animals, with which the earth swarmed, and which God had “separated to make unclean,” i.e., had prohibited them from eating or touching when dead, because they defiled (see ch. 11). For (Lev 18:26) they were to be holy, because Jehovah their God was holy, who had severed them from the nations, to belong to Him, i.e., to be the nation of His possession (see Exo 19:4-6).
Verse 27
But because Israel was called to be the holy nation of Jehovah, every one, ether man or woman, in whom there was a heathenish spirit of soothsaying, was to be put to death, viz., stoned (cf. Lev 19:31), to prevent defilement by idolatrous abominations. Holiness of the Priests, of the Holy Gifts, and of Sacrifices - Leviticus 21-22
The Sanctification of the Priests. - As the whole nation was to strive after sanctification in all the duties
