Clement of Alexandria

We have as a limit the cross of the Lord, by which we are fenced and hedged about from our former sins. Therefore, being regenerated, let us fix ourselves to it in truth, and return to sobriety, and sanctify ourselves; "for the eyes of the Lord are on the righteous, and His ears are open to their prayer; but the face of the Lord is against them that do evil." And who is he that will harm us, if we be followers of that which is good?

The Instructor Book 3 ↗

Augustine of Hippo

If you love the good, you will suffer no loss, because whatever you may be deprived of in this world, you will never lose God, who is the true Good.

SERMONS 335c.5 ↗

Bede

And who is there to harm you, etc. He speaks of those things that happen to us from adversaries through insulting words, through the loss of temporal goods, through bodily tortures. For all these and similar things, when inflicted upon the faithful, can in no way harm those who are zealous for good, especially according to knowledge, but rather bring the reward of patience to those who endure equanimously. On the contrary, they greatly harm those who inflict punishment by accumulating eternal punishment for themselves. …

Commentary on the Catholic Epistles ↗