Proverbs 26:24 in the World English Bible
A malicious man disguises himself with his lips, but he harbors evil in his heart.
Context
23 Burning lips and a wicked heart are like a potsherd covered with silver dross.
24 He that hateth dissembleth with his lips, and layeth up deceit within him;
25 When he speaketh fair, believe him not: for there are seven abominations in his heart.