Proverbs 6:12

Naughty. Heb. beliyya‘al, frequently translated “Belial” (Judges 19:22; 20:13; 1 Sam. 1:16; etc.). It denotes “worthlessness.” When connected with “person [Heb. ’adam],” as here, it describes a worthless, good-for-nothing, base man.

Froward mouth. Literally, “crookedness of mouth.” Idleness and sloth often lead to treachery and deceit. The course of the wicked man is marked by perversity of mouth. Not only does such a man lie; he advocates evil and puts a false interpretation upon good. The psalmist describes a similar “crookedness of mouth”: “His mouth is full of cursing and deceit and fraud: under his tongue is mischief and vanity” (Ps. 10:7).