82. Jesus does not say, “Blessed are those who plot revenge”. He calls “blessed” those who forgive and do so “seventy times seven” (Mt 18:22). We need to think of ourselves as an army of the forgiven.
By forgiving others, we help create an army of the forgiven. Or if we are stingy, a lonely outpost or two.
All of us have been looked upon with divine compassion. If we approach the Lord with sincerity and listen carefully, there may well be times when we hear his reproach: “Should not you have had mercy on your fellow servant, as I had mercy on you?” (Mt 18:33).
Seeing and acting with mercy: that is holiness.
You can check the full document Gaudete et Exsultate on the Vatican website.