Proverbs 26:23-25

Lexham English Bible

²³ Like impure silver^[a] which overlays an earthen vessel,
    so are smooth lips and an evil heart^[b].
²⁴ On his lips, an enemy will pretend,
    but inside^[c] he will harbor deceit.
²⁵ When he makes his voice gracious, do not believe him,
    for seven abominations are in his heart.