Proverbs 26:23-26 YLT

23 Silver of dross spread over potsherd, [Are] burning lips and an evil heart.
24 By his lips doth a hater dissemble, And in his heart he placeth deceit,
25 When his voice is gracious trust not in him, For seven abominations [are] in his heart.
26 Hatred is covered by deceit, Revealed is its wickedness in an assembly.