1 Peter 3:9

Epistle of Polycarp to the Philippians

up us also, if we do His will, and walk in His commandments, and love what He loved, keeping ourselves from all unrighteousness, covetousness, love of money, evil speaking, false witness; "not rendering evil for evil, or railing for railing,"[15]

Tertullian On Idolatry

How much more, while you are returning the malediction in the name of Jupiter himself, are you doing honour to Jupiter in the same way as he who provoked you! But a believer ought to laugh in such cases, not to rave; nay, according to the precept,[169]

Tertullian On Prayer

Not even by an evil word does He permit it to be vented.[77]

Addition to Acts of Philip

And the Saviour said: O Philip, since thou hast forsaken this commandment of mine, not to render evil for evil,[6]