480. What does the Lord ask of every person in regard to peace?The Lord proclaimed "
Blessed are the peacemakers" (
Matthew 5:9). He called the peace of heart and denounced the immorality of anger which is a desire for revenge for some evil suffered. "But I say to you that every one who is angry with his brother shall be liable to judgment" (Matthew 5:22). He also denounced hatred which leads one to wish evil on one's neighbor. These attitudes, if voluntary and consented to in matters of great importance, are mortal sins against charity.
Further reading: CCC 2302-2303481. What is peace in this world?
Peace in this world, which is required for the respect and development of human life, is not simply the absence of war or a balance of power between adversaries. It is "the tranquility of order" (Saint Augustine), "The work of justice" (
Isaiah 32:17) and the effect of charity. Earthly peace is the image and fruit of the peace of Christ.
Further reading: CCC 2304-2305482. What is required for earthly peace?
Earthly peace requires the safeguarding of the goods of persons, free communication among human beings, respect for the dignity of persons and peoples, and the assiduous practice of justice and fraternity.
Further reading: CCC 2304, 2307-2308