From The Crown of Monks
None exalt themselves more with God than those who for God’s sake humble themselves in their own estimation. The humble are exalted by God so as to be called children of God and heirs of Christ. Only let them pursue peace, because the children of peace must seek and pursue peace.
This is the thrust of the apostle’s admonition when he says, Pursue peace with everyone, and the holiness without which no one will see God. (Hebrews 12:14) The Lord himself also says in the gospel: Blessed are the peacemakers, for they will be called children of God. (Matthew 5:9) Among his divine commands and saving teachings, when he was very near his passion, the Savior entrusted this precept and commandment to us to keep, saying, My peace I give to you; my peace I entrust to you. (John 14:27) When ascending into Heaven, the Lord left us this inheritance, and commanded us through his most faithful king and prophet David to pursue it. He said, Turn away from evil, and do good; seek peace, and pursue it. (Psalm 33:14) If we are willing to pursue this with a sincere heart, we shall be heirs of Christ. But is we desire to be Christ’s heirs, we must live in Christ’s peace. If we are God’s children we must be peaceful. For God’s children must be peaceful and humble, meek in mind, simple in heart, pure in word, innocent in spirit, having the same mind and heart, cleaving faithfully and with one mind to one another.