Proverbs 26:24-26, 28

He that hateth dissembleth with his lips, And layeth up deceit within him; When he speaketh fair, believe him not: For there are seven abominations in his heart. Whose hatred is covered by deceit, His wickedness shall be shewed before the whole congregation.

A lying tongue hateth those that are afflicted by it; And a flattering mouth worketh ruin.