Peter, the teacher of the apostles; Paul, who is known to the world, and who partakes with the powers above.
St. Peter, the fervent follower of Jesus Christ, for the profound confession of His Divinity: “Thou art the Christ, the Son of the Living God,” was deemed worthy by the Savior to hear in answer, “Blessed art thou, Simon … I tell thee, that thou art Peter [Petrus], and on this stone [petra] I build My Church” (Mt.16:16-18). On “this stone” [petra], is on that which thou sayest: “Thou art the Christ, the Son of the Living God” it is on this thy confession I build My Church.
Peter was the son of Jonah and the brother of Andrew, the First-called. He was of the Tribe of Simeon from the town of Bethsaida. He was a fisherman and, at first, was called Simon but the Lord was pleased to call him Cephas or Peter: “And he brought him to Jesus. And when Jesus beheld him, He said, You are Simon the son of Jonah: you shall be called Cephas, which is by interpretation, a rock” (St. John 1:42).