Proverbs 26:21-23

²¹As coals for hot coals, and wood for fire, so is a contentious man to inflame strife.

²²The words of a talebearer are as dainty morsels, and they go down into the innermost parts of the belly.

²³Ardent lips, and a wicked heart, are as an earthen vessel overlaid with silver dross.