***But those of us who can understand can also know that vengeance is the Lord’s and that the old law of an eye for an eye has passed away in the New Covenant.***
Vengeance yes.
But who is the agent of God’s wrath?
Romans 13 3-5 teaches: For rulers are not a terror to good conduct, but to bad. Would you have no fear of the one who is in authority? Then do what is good, and you will receive his approval, for he is God’s servant for your good. But if you do wrong, be afraid, for he does not bear the sword in vain. For he is the servant of God, an avenger who carries out God’s wrath on the wrongdoer. Therefore one must be in subjection, not only to avoid God’s wrath but also for the sake of conscience.
My post had to do with the act of personal forgiveness of a wrong done.
This quote from Romans makes reference to lawful authority. I don’t see it as justifying an act of vengeance by one who takes justice into his own hands.