John Gills Exposition of the Bible Commentary - Proverbs 17:4
A wicked doer giveth heed to false lips ,.... A man of an ill spirit, of a mischievous disposition, that delights in doing wickedness; he carefully attends to such as speak falsehood; he listens to lies and calumnies, loves to hear ill reports of persons, and takes pleasure in spreading them to the hurt of their characters; and men of bad hearts and lives give heed to seducing spirits, to false teachers, to inch as speak lies in hypocrisy, who sooth and harden them in their wickedness; ... read more
Matthew Henry's Complete Commentary - Proverbs 17:4
Note, 1. Those that design to do ill support themselves by falsehood and lying: A wicked doer gives ear, with a great deal of pleasure, to false lips, that will justify him in the ill he does, to those that aim to make public disturbances, catch greedily at libels, and false stories, that defame the government and the administration. 2. Those that take the liberty to tell lies take a pleasure in hearing them told: A liar gives heed to a malicious backbiting tongue, that he may have something... read more