John Chrysostom
Nothing is equal to peace. Therefore we pray and ask for an angel of peace, and everywhere in the churches we ask for peace, in prayers, petitions, and greetings. Once, twice, three times, and many times, the presider of the church gives it, saying, “Peace be to you.” Why? Because peace is the mother of all good things and the foundation of joy. Therefore Christ commanded the apostles, when entering a house, to say this first, as a sign of good things: “Whatever house you enter, first say, Peace to this house” (Lk 10:5). When peace is absent, everything is vain. Christ also said to the disciples: “My peace I give to you” (Jn 14:27). Peace prepares the way for love.