You come before the judgment seat of God full of rebellion and mistakes. Because of his justice he cannot dismiss your sin, but because of his love he cannot dismiss you. So, in an act which stunned the heavens, he punished himself on the cross for your sins. God’s justice and love are equally honored. And you, God’s creation, are forgiven.
Forgiveness doesn't diminish justice; it just entrusts it to God. He guarantees the right retribution.
Vengeance fixes your attention on life's ugliest moments. Is this where you want to look? Remember: God dispenses perfect justice.
I think that a church should be setting the pace for social justice.