7 "Do not violate your father by having sexual relations with your mother. She is your mother; you must not have sexual relations with her. 8 "Do not have sexual relations with any of your father's wives, for this would violate your father. 9 "Do not have sexual relations with your sister or half sister, whether she is your father's daughter or your mother's daughter, whether she was born into your household or someone else's. 10 "Do not have sexual relations with your granddaughter, whether she is your son's daughter or your daughter's daughter, for this would violate yourself. 11 "Do not have sexual relations with your stepsister, the daughter of any of your father's wives, for she is your sister. 12 "Do not have sexual relations with your father's sister, for she is your father's close relative. 13 "Do not have sexual relations with your mother's sister, for she is your mother's close relative. 14 "Do not violate your uncle, your father's brother, by having sexual relations with his wife, for she is your aunt. 15 "Do not have sexual relations with your daughter-in-law; she is your son's wife, so you must not have sexual relations with her. 16 "Do not have sexual relations with your brother's wife, for this would violate your brother.

Matthew Henry's Commentary on Leviticus 18:7-16

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.