12 "Don't have sex with your father's sister; she is your aunt, closely related to your father. 13 "Don't have sex with your mother's sister; she is your aunt, closely related to your mother. 14 "Don't violate your father's brother, your uncle, by having sex with his wife. She is your aunt. 15 "Don't have sex with your daughter-in-law. She is your son's wife; don't have sex with her. 16 "Don't have sex with your brother's wife; that would violate your brother. 17 "Don't have sex with both a woman and her daughter. And don't have sex with her granddaughters either. They are her close relatives. That is wicked.
Matthew Henry's Commentary on Leviticus 18:12-17
Chapter Contents
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.