Proverbs 17:4

4. Wicked doer… giveth heed to false lips He is an evil doer, a bad man, who gives heed to an iniquitous lip corrupt speech; and he is a false man, whatever he feigns, that listens with pleasure to a pestilent tongue. That is, a bad man may be known by the pleasure he takes in the wicked utterances of others. When Murrell, “the land pirate,” wished to test a man whom he casually met, to ascertain whether he would make a suitable tool for his rapacious purposes, his usual course was to tell stories involving shrewd mischief, wickedness, and crime, beginning with the less aggravated. If he found his auditor took evident pleasure in these, he proceeded to tell tales of robbery and murder. If the man showed abhorrence of the wickedness, he dropped him as unsuited to his purpose:

but if he evinced sympathy with the criminal rather than with the victim, he deemed him fit for his use. This was a wicked man’s way of proving the heart, and was temporarily successful: but he was finally caught in his own trap. That prurient taste which revels in police reports, and tales of licentiousness and murder, is a sure mark of a depraved mind, and of a strong bias to evil.