It is useless to meet revenge with revenge; it will heal nothing.
We ought not to keep score of the number of times others have hurt us. God keeps records, and vengeance belongs to him.
Be awed that in our unrighteous anger God reveals the depth of His love on our behalf. It is a heart that is willing to feel angry enough to battle with God that will be surprised into praise. And nothing, but nothing, is the cure for anger like the wonder of grace. It is praise for His grace even in the light of our impotency to eradicate our unrighteous anger that leads, in time, to waiting for God’s wrath rather than seeking revenge today.
If someone has wronged you, and you get revenge, you will be pleased for a minute, If you forgive him, you will be happy forever.
Everything you do in revenge against a brother who has harmed you will come back to your mind at the time of prayer.