What are you saying? "Shall I forgive him?" Christ is saying, "Yes!" This sacrifice was instituted for the sake of peace with your brother. Accordingly, if the sacrifice was instituted for the sake of peace with your brother, but you do not establish peace, you partake of the sacrifice in vain, the work has become of no profit to you. Do first, then, that for the sake of which the sacrifice is offered, and then you will properly enjoy its benefits. The Son of God came down for this purpose, to reconcile our human nature to the Lord. But He did not come down for that purpose alone, but also for the purpose of making us, if we do likewise, sharers of His title. For He says: "Blessed are the peacemakers, for they shall be called sons of God" (Mt. 5:9). You, according to human capacity, must do what the Only begotten Son of god has done, be an agent of peace, for yourself and for others. For this reason, at the very time of sacrifice He recalls to us no other commandment that that of reconciliation with one’s brother, showing that it is the greatest of all.