1 Peter 3:9

9Not rendering evil for evil In these words every kind of revenge is forbidden; for in order to preserve love, we must bear with many things. At the same time he does not speak here of mutual benevolence, but he would have us to endure wrongs, when provoked by ungodly men. And though it is commonly thought that it is an instance of a weak and abject mind, not to avenge injuries, yet it is counted before God as the highest magnanimity. Nor is it indeed enough to abstain from revenge; but Peter requires also that we should pray for those who reproach us; for to bless here means to pray, as it is set in opposition to the second clause. But Peter teaches us in general, that evils are to be overcome by acts of kindness. This is indeed very hard, but we ought to imitate in this case our heavenly Father, who makes his sun to rise on the unworthy. What the sophists imagine to be the meaning, is a futile evasion; for when Christ said, “Love your enemies,” he at the same time confirmed his own doctrine by saying, “That ye might be the children of God.”

Knowing that ye are thereunto called He means that this condition was required of the faithful when they were called by God, that they were not only to be so meek as not to retaliate injuries, but also to bless those who cursed them; and as this condition may seem almost unjust, he calls their attention to the reward; as though he had said, that there is no reason why the faithful should complain, because their wrongs would turn to their own benefit. In short, he shews how much would be the gain of patience; for if we submissively bear injuries, the Lord will bestow on us his blessing.

The verb, κληρονόμειν, to inherit, seems to express perpetuity, as though Peter had said, that the blessing would not be for a short time, but perpetual, if we be submissive in bearing injuries. But God blesses in a way different, from men; for we express our wishes to him, but he confers a blessing on us. And on the other hand, Peter intimates that they who seek to revenge injuries, attempt what will yield them no good, for they thus deprive themselves of God’s blessing.