“Blessed are the peacemakers, for they shall be called sons of God. [Mt. 5:9]
Saint Chrysostom: “Herein He not only takes away our own variance and hatred among ourselves, but He requires something more, that is, that we should set at one again others who are at variance. And again the prize is spiritual: ‘For they shall be called sons of God.’ For this became the work of the Only-begotten, to bring together those that stood apart and to reconcile those who were enemies.”
Saint Gregory of Nyssa: “Now a peacemaker is a man who gives peace to another; but one cannot give another what he himself does not possess. Hence the Lord wants you first to be yourself filled with the blessings of peace, and then to communicate it to those who have need of it….Now it is a loving disposition of one’s neighbor….Now who are these? Those who imitate the divine love of men, who show forth in their own life the characteristic of the divine energy….
“But perhaps this Beatitude does not only regard the good of others. I think a man is called a peacemaker who pacifies perfectly the discord between flesh and spirit in himself and the war that is inherent in nature, so that the law of the body no longer wars against the law of the mind, but is subjected to the higher rule and becomes a servant of the divine ordinance.” [Sermon 7]
(The Orthodox New Testament, Volume 1, Holy Apostles Convent, Buena Vista, Colorado)