Burning lips, and a wicked heart
Either burning with wrath and malice; breathing out threatenings and slaughter; pursuing men with reproaches and slanders, arising from a wicked heart: or rather, burning with profession of love to God, and affection to good men; with great pretensions of kindness, and promises of good things, when their hearts are wicked, and they design noticing less; say one thing with their lips, with the greatest show of affection and sincerity, and mean another in their hearts. These [are like] a potsherd covered with silver dross:
which at a distance, or to less discerning persons, looks like silver, and is taken for it; when the covering is only dross, and what is within is only a potsherd, Or a piece of an earthen vessel, good for nothing: such are the specious professions and deceitful words, which flow from a wicked heart.