The Apostle Paul
Romans 12:21BSB·traditional attribution

Do not be overcome by evil, but overcome evil with good.

John Calvin Reformed

21. Be not overcome by evil, etc. This sentence is laid down as a confirmation; for in this case our contest is altogether with perverseness, if we try to retaliate it, we confess that we are overcome by it; if, on the contrary, we return good for evil, by that very deed we show the invincible firmness of our mind.

John Gill Reformed Baptist

Be not overcome of evil,.... Neither of the evil one, Satan, who is very busy to stir up the corruption of nature to an hatred of enemies, and to seek revenge; but give no place nor heed unto him, resist him, and he will flee from you, Jam 4:7; "put on the whole armour of God", Eph 6:11, whereby you may defend yourselves, that he...

Jamieson-Fausset-Brown Reformed

Be not overcome of evil--for then you are the conquered party. but overcome evil with good--and then the victory is yours; you have subdued your enemy in the noblest sense. Note, (1) The redeeming mercy of God in Christ is, in the souls of believers, the living spring of all holy obedience (Rom 12:1).