My friend was saying in this passage Jesus is giving the “keys” to all his disciples after acknowledging Peter for his profession of faith. Does anyone have any other perspectives on this topic?
Your friend has to think that to avoid the obvious Catholic implications.
Peter – The Rock, Keeper of the Keys and Royal Steward
"When Jesus came to the region of Caesarea Philippi, he asked his disciples, “Who do people say the Son of Man is?” They replied, “Some say John the Baptist; others say Elijah; and still others, Jeremiah or one of the prophets.” “But what about you?” he asked. “Who do you say I am?” Simon Peter answered, “You are the Christ, the Son of the living God.” Jesus replied, “Blessed are you, Simon son of Jonah, for this was not revealed to you by man, but by my Father in heaven. And I tell you that you are Peter, and on this rock I will build my church, and the gates of Hades will not overcome it. I will give you the keys of the kingdom of heaven; whatever you bind on earth will be bound in heaven, and whatever you loose on earth will be loosed in heaven.” (Matthew 16:13-19)
Peter’s understanding that Jesus was the Son of God did not come from working it out on his own. Instead, God the Father infused this revelation into Peter’s mind thus imprinting His seal of approval upon this humble fisherman. Jesus recognized that Simon had already been anointed by His Father in this way and declared, “
Blessed are you.” The Father had blessed Simon with knowledge of the Son.
Jesus gave him the name, “Kepha”, an Aramaic word that means “rock”. In the original, the passage would read, “You are
kepha, and on this
kepha I will build my church.” Jesus also announces the establishment of His Church, and clearly delineates Kepha as its leader. Although Jesus spoke Aramaic, the New Testament was written in Greek, and “
Kepha” would have been translated into the Greek words for “rock” which are “
petra” or “
petros”. “
Petra” is the feminine form of the masculine word, “
petros”.
Petros is more suitable for a man. Therefore, from “
petros” we derive the English name, “Peter”. For us modern readers then, Jesus’ pronouncement reads, “You are Peter and upon this rock I will build my church.” What is it about Peter’s character that caused Jesus to compare him to something as solid as rock? Isn’t this the same Peter who Jesus called “Satan” just a few verses later? (cf. Mt 16:23) Isn’t this the same Peter who would deny the Lord three times after his arrest? (cf. Lk 22:34) Surely this unstable character is anything but solid rock upon which a Church could be built; yet, Jesus sees something deeper in Peter’s character, and His choice would be vindicated when Peter ultimately received a martyr’s crown via crucifixion.
Jesus gave Peter the “keys of the kingdom of heaven”. In ancient times, a king might choose a second in command (known as the royal steward or prime minister) who literally wore a large key as a symbol of his office and who spoke with the authority of the king. The prophet Isaiah confirms this:
"In that day I will summon my servant, Eliakim son of Hilkiah. I will clothe him with your robe and fasten your sash around him and hand your authority over to him. He will be a father to those who live in Jerusalem and to the house of Judah.
I will place on his shoulder the key to the house of David; what he opens no one can shut, and what he shuts no one can open.” (Isaiah 22:22)
In the passage above, God is speaking, and He confirms the existence of the office, the key, and the continuation of the office despite the change of office holder. In other words, the
office of the royal steward continued even when the man who held the office died or was replaced by someone else.
In the New Testament, we learn that Jesus inherits the throne of his father, David.
Luke 1:31–33
And behold, you will conceive in your womb and bear a son, and you shall call his name Jesus. He will be great, and will be called Son of the Most High; and the Lord God will give to him the throne of his father David, and he will reign over the house of Jacob forever; and of his kingdom there will be no end.
The passage quoted above from Matthew tells us that Jesus named Peter as His royal steward and gave him the “keys to the kingdom of heaven" as the symbol of his authority to speak in His name. Since Jesus is an eternal king, the office of royal steward in His kingdom will never. Peter died as a martyr as Jesus foretold, and the successors of Peter have taken his place in the eternal office that Jesus established in His royal court.
In addition to the reference to a key or keys, note the following parallels:
"What he opens no one can shut, and what he shuts no one can open.” (Is. 22:22)
"Whatever you bind on earth will be bound in heaven, and whatever you loose on earth will be loosed in heaven.” (Mt. 16:19)
Jesus specifically referenced the passage from Isaiah when He appointed Peter. Peter has received authority from Jesus to speak in His name. To do so faithfully, Peter must not teach error; therefore, Peter (and his successors who hold the office) are protected by God through the charism of infallibility.