"Upon him (Peter), being one, He (Christ) built His Church and

although after His resurrection He bestows equal power upon

all the Apostles, and says: "As the Father has sent me, I also

send you. Receive the Holy Spirit: if you forgive the sins of

anyone, they will be forgiven him; if you retain the sins of

anyone, they will be retained" (Jn 20:21), that He might display

unity, He established by His authority the origin of the same

unity as beginning from one."