Proverbs 26:24-26 (King James Version)
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. 26 Whose hatred is covered by deceit, his wickedness shall be shewed before the whole congregation.
26:24 dissembleth: or, is known
26:25 speaketh...: Heb. maketh his voice gracious