Don’t be condescending.
Christ told Simon Bar-Jonah:
Mat 16:17 And Jesus answering said to him: Blessed art thou, Simon Bar-Jona: because flesh and blood hath not revealed it to thee, but my Father who is in heaven.
Mat 16:18 And I say to thee: That thou art Peter; and upon this rock I will build my church, and the gates of hell shall not prevail against it.
Mat 16:19 And I will give to thee the keys of the kingdom of heaven. And whatsoever thou shalt bind upon earth, it shall be bound also in heaven: and whatsoever thou shalt loose on earth, it shall be loosed also in heaven.
He renamed Simon to Peter, which is English for the Greek word used for ‘rock’.
A change in name in Scripture ALWAYS came with a significant change in stature and responsibility. It wasn’t a “whim” of Christ’s to change Simon’s name to Peter. And we know that change was real, as it’s referred to throughout the NT. What is the significance of the name change, if not to designate Peter as the primate over all the followers of Christ? Note that whenever a name change was made in the OT, there was an explanation for it – Abram becomes Abraham because God will make of him a great nation. Jacob becomes Israel because he contended and had power with God and with men and prevailed. Likewise, Simon becomes Peter because upon his strength in faith the sacred community of the faithful, the Church, would be founded.
The gates of ‘hades’ or the ‘great abyss’ was located in a niche at Caesarea Philippi, the place Christ chose to announce His Church, and even the gates of hell shall not prevail against it.
Caesarea Philippi was known as Panion, city of the great pagan god Pan, who pagans believed ruled the world. Pan was a pagan god of shepherds, flocks and thought to be depraved. To Christians he represented evil. The altar to Pan was hidden in the cliffs below the city. The site that honored Pan exists even to present day.
Caesarea Philippi was so named by Herod Philip, in honor of the ruling caesar at the time.
Why of all the places Christ travelled, did He choose this spot to announce His Church? Because through the Church He was establishing, it is the opposite to everything that kept men from the Kingdom. Remember, the ‘abyss’ was located in a niche in the mountain, and it shall not prevail against His Church.
Christ ‘inherited’ the Davidic throne, considered by Jews to be the throne of God, as it was given to David by God. Now read Isaiah 22 and realize the keys to the kingdom left someone in charge in place of the absent king. The holder of the keys acted in place of the king and only answered to the king.
This small passage in Matthew is a very easy read, unless your reaching to make it say something else, in my opinion. Read it in light of John 21 and we see what Peter’s role was according to Christ.
Joh 21:15 When therefore they had dined, Jesus saith to Simon Peter: Simon, son of John, lovest thou me more than these? He saith to him: Yea, Lord, thou knowest that I love thee. He saith to him: Feed my lambs.
Joh 21:16 He saith to him again: Simon, son of John, lovest thou me? He saith to him: yea, Lord, thou knowest that I love thee. He saith to him: Feed my lambs.
Joh 21:17 He said to him the third time: Simon, son of John, lovest thou me? Peter was grieved because he had said to him the third time: Lovest thou me? And he said to him: Lord, thou knowest all things: thou knowest that I love thee. He said to him: Feed my sheep.
This doesn’t even take into account the symbolism of Peter, alone, pulling in the net of fish that all the Apostles together could not land, and that the net did not break!
Joh 21:8 But the other disciples came in the ship (for they were not far from the land, but as it were two hundred cubits) dragging the net with fishes.
Joh 21:9 As soon then as they came to land they saw hot coals lying, and a fish laid thereon, and bread.
Joh 21:10 Jesus saith to them: Bring hither of the fishes which you have now caught.
Joh 21:11 Simon Peter went up and drew the net to land, full of great fishes, one hundred and fifty-three. And although there were so many, the net was not broken.