Blessed are the peacemakers: for they shall be called the children of God.
All Commentaries on Matthew 5:9 Go To Matthew 5
Here he not only responds that they should not feud and become hateful to one another, but he is also looking for something else and something more, that we bring together others who are feuding. And again he promises a spiritual reward. What kind of reward is it? “That they themselves shall be called sons of God.” For in fact this was the crucial work of the Only Begotten: to bring together things divided and to reconcile the alienated. The Gospel of Matthew, Homily