Matthew 5:9 “Blessed are the peacemakers, for they will be called sons of God.”
Once we were at war with God. We were his enemies. We had no interest in making peace with him. We were content to live and fight on the other side.
Then God himself came and made peace. He reconciled us to himself. He repaired the relationship. He sacrificed his own Son to do so. That is the best thing that has ever happened to you and me.
Spiritually, it makes sense that people who have experienced such peace would look at the relationships they have with the people around them, or the relationships of other people in general, and want to make peace. They see the value. They have experienced the relief. They know the blessing.
And this shows that they are becoming like their Father, from whom they learned this concern. The Lord once described King David as “a man after my own heart.” Jesus’ declaration of blessing here is similar. I know of no higher compliment than to be called “sons of God.”