Proverbs 26:21 KJV
As coals are to burning coals, and wood to fire; so is a contentious man to kindle strife.
Proverbs 26:21, King James Version
In context
20 Where no wood is, there the fire goeth out: so where there is no talebearer, the strife ceaseth.
21 As coals are to burning coals, and wood to fire; so is a contentious man to kindle strife.
22 The words of a talebearer are as wounds, and they go down into the innermost parts of the belly.