Gather with us this Sunday 1:45 PM · Peoria, ArizonaWatch online
Westminster Larger Catechism · Question 139

What are the sins forbidden in the seventh commandment?

Read, reflect, and return to the Scriptures.

The sins forbidden in the seventh commandment, besides the neglect of the duties required, are, adultery, fornication, rape, incest, sodomy, and all unnatural lusts; all unclean imaginations, thoughts, purposes, and affections; all corrupt or filthy communications, or listening thereunto; wanton looks; impudent or light behavior; immodest apparel; prohibiting of lawful, and dispensing with unlawful marriages; allowing, tolerating, keeping of stews, and resorting to them; entangling vows of single life; undue delay of marriage; having more wives or husbands than one at the same time; unjust divorce or desertion; idleness, gluttony, drunkenness, unchaste company; lascivious songs, books, pictures, dancing, stage plays; and all other provocations to, or acts of uncleanness, either in ourselves or others.

Scripture proofs: Prov. 5:7; Heb. 13:4; Gal. 5:19; 2 Sam. 13:14; 1 Cor. 5:1; Rom. 1:24, 26-27; Lev. 20:15-16; Matt. 5:28; Matt. 15:19; Col. 3:5; Eph. 5:3-4; Prov. 7:5, 21-22; Isa. 3:16; 2 Pet. 2:14; Prov. 7:10, 13; 1 Tim. 4:3; Lev. 18:1-21; Mark 6:18; Mal. 2: 11-12; 1 Kings 15:12; 2 Kings 23:7; Deut. 23:17-18; Lev. 19:29; Jer. 5:7; Prov. 7:24-27; Matt. 19:10-11; 1 Cor. 7:7-9; Gen. 38:26; Mal. 2:14-15; Matt. 19:5; Mal. 2:16; Matt. 5:32; 1 Cor. 7:12-13; Ezek. 16:49; Prov. 23:30-33; Gen. 39:10; Prov. 5:8; Eph. 5:4; Ezek. 23:14-16; Isa. 23:15-17; Isa. 3:16; Mark 6:22; Rom. 13:13; 1 Pet. 4:3; 2 Kings 9:30; Jer. 4:30; Ezek. 23:40.

Source: The Constitution of the Reformed Presbyterian Church of North America, updated 2026, B-29.