Proverbs 26:24-27

He that hateth dissembleth with his lips, and layeth up deceit within him; {dissembleth: or, is known} When he speaketh fair, believe him not: for {there are} seven abominations in his heart. {speaketh...: Heb. maketh his voice gracious} {Whose} hatred is covered by deceit, his wickedness shall be shewed before the {whole} congregation. {by...: or, in secret} Whoso diggeth a pit shall fall therein: and he that rolleth a stone, it will return upon him.