Proverbs 16:4
4 The LORD has made all for Himself, Yes, even the wicked for the day of doom.

“How then do the wicked serve the good? As persecutors serve the martyrs; as a file or hammer, gold; as a mill, wheat; as ovens, the baking of bread: those are consumed, so that these may be baked. How, I say, do the wicked serve the good? As chaff in the furnace of the goldsmith serves gold…. Therefore the wicked should not boast or extol themselves when they send tribulations to the good. For while they are persecuting the good in their bodies, they are killing themselves in their hearts.”
Caesarius of Arles (c. 468-542)
In Ancient Christian Commentary on Scripture, Vol II: Genesis 12-50, p. 148.