Entrance Antiphon:These are the ones who, living in the less, planted the Church with their blood; they drank the chalice of the Lord and became the friends of God.Communion Antiphon, Cf. Mt 16:16, 18:Peter said to Jesus: You are the Christ, the Son of the living God. And Jesus replied: You are Peter, and upon this rock I will build my Church.Preface: the twofold mission of Peter and Paul in the Church:It is truly right and just, our duty and our salvation, always and everywhere to give you thanks, Lord, holy Father, almighty and eternal God. For by your providence the blessed Apostles Peter and Paul bring us joy: