Homily: Establishing Peter’s Authority with the Keys to the Kingdom

Rev. Fr. Eugene Lobo

Fr Eugene Lobo, SJ –

Twenty first Sunday of the year August 27, 2023
Isaiah 22:19-23   Romans 11:33-36   Matthew 16:13-20

Jesus challenges us to know him personally as he makes an exclusive, concerned, loving claim upon each one of us. He invites us to discover him, serve him and love him as Lord and he wants from each one of us our total, single-hearted response. He offers an exclusive promise, and builds with us the best and unique friendship which indicates that through him and in him alone we will find salvation. From today’s readings, we perceive the depth of the riches, wisdom and knowledge of God. We come to the realization that the judgments of God are indeed mysterious and yet contain his deep concern for us. In the Gospel of today we see Jesus making a simple human inquiry about the way they have understood him and whether his mission is successful. He is the God-man, the messiah but he wants to know how his disciples have truly grasped his teaching. Peter responds to him in the name of the disciples that he is the messiah. In return Peter is commissioned by Jesus and is given the authority and leadership in the church. He promises Peter the keys of the kingdom of heaven. 

In today’s first reading we hear of God choosing Eliakim to exercise headship over Israel. It is God who speaks; God who determines; God who sets the agenda. The fundamental question whether God determines how the efforts of religion will be directed. Isaiah is directed by God to announce that a royal official named Shebna will soon be replaced.  God refers to Shebna with the dismissive word, that official, while his replacement Eliakim carries the noble title my servant. God says that he will place on his shoulders the key of the house of David; he shall open and none shall shut; and he shall shut and none shall open. Shebna was one of the court officials had put his trust in human resources than in God.  He had tried to persuade Hezekiah to revolt against Assyria by sending for Egyptian support and amass large forces of chariots than serve God of Israel. God further describes Eliakim as a father to the people of Jerusalem and to the house of Judah since he will give priority to their welfare. 

In the previous chapters of his Letter to the Romans, Paul has been describing God’s love for Jews and gentiles, and his merciful dealings with them.  He concludes this section of his letter with a hymn of praise for Go’s infinite wisdom and mercy, which is something far beyond what we humans can imagine.  Paul thinking on the nature, wisdom and knowledge of God, is simply astounded.  The nature and the gifts of God are infinite, and therefore no finite mind can grasp or adequately conceive of them.  A man has human nature, knowledge and wisdom.  But God is the divine nature, divine knowledge and divine wisdom.  It is useless therefore for man with his limited mind to try to grasp fully the decisions made by God or the wisdom he employed in carrying them out.  Paul here quotes Isaiah to make his point where the prophet declares that no human being is able to understand God’s ways and no man can ever advise him, for God knows all truth and everything is present to him. 

In the Gospel of today we have the profession of faith by Peter in the messiahship of Jesus. In response Jesus confers on Peter the primacy and leadership in the church he was establishing.  At the same time Jesus tells him that he will be the foundation of his church and grants him the gift of infallibility.  Here we recall a high point in Jesus’ relationship with his disciples. They had been with Jesus for nearly three years.  They had heard his teaching and seen his miracles.  He had even sent them out on a mission to heal and to preach. They were attached to Jesus and had grown in their understanding of him.  It took them quite a while to become aware who Jesus really was.  He was a popular person, a great leader and wonderful teacher. Yet, as the rest of the Gospel clearly indicates, they still did not fully understand the implications of what they had just begun to realize.  Some had even expressed doubt about Jesus even after the resurrection.

The incident took place at Caesarea Philippi, where Jesus asks his disciples who the Son of Man is.  This was the place known for its temples and particularly outstanding was the great marble temple dedicated to the godhead of Caesar. This was understood as a place where many religions met. The city was twenty miles north of the Sea of Galilee built by Tetrarch Philip in one A.D.  Here Jesus starts asking his disciples asking the question, what people are saying about him.  Jesus calls himself “Son of Man” here, thus identifying himself with the Messianic figure in the seventh chapter of Daniel, which says:  “Behold with the clouds of heaven there came one like a son of man… to him was given dominion and glory and kingdom that all peoples, nations, and languages should serve him.” In response the disciples tell him that people think he is John the Baptist, executed recently by Herod and raised to life.  Some think him to be Prophet Elijah who went to heaven in a fiery chariot without tasting death and was expected to return as a sign of the imminent coming of the Messiah.  Others thought him to be prophet Jeremiah, who had hidden the Ark of the Covenant and he was expected to show it before the coming of the Messiah.

Peter, speaking on behalf of the community, said without any hesitation that they were assured that Jesus is the promised Messiah, the Son of the living God. He is someone extra-ordinary.  Jesus now turns his attention to Peter and confers on him the blessing for the response he gave.  Jesus recognizes Peter’s response to be the result of divine revelation and beyond what any human could have known from human knowledge alone.  He tells him:  “Simon, son of Jonah, you are a happy man.  Because it was not flesh and blood that revealed this to you but it is my Father in heaven who revealed this to you.” Only faith could have led Peter to say what he did.  Jesus uses this divine revelation as a basis for granting Peter a special role in the establishing of the church. He then declares Peter to be blessed, as God has conferred on him special grace to differ from his unbelieving countrymen.

Immediately after this Jesus declared the authority with which Peter would be invested. He spoke in the name of his brethren, and this related to them as well as to him. They had no total knowledge of the characters of men, and were liable to mistakes; but they would be kept from error in stating the way of acceptance and salvation, the rule of obedience, the believer’s character and experience, and the final destiny of unbelievers and those who deliberately stray away. In such matters the decision of the disciples was right, and it would be confirmed in heaven.  He gave also the power to forgive sins of people the function that belongs to God alone.  They will now be the messengers of God.  The words binding and loosing, in the common language of the Jews, signified to forbid and to allow, or to teach what is lawful or unlawful and Jesus gives Peter and his companions this power. Jesus tells Peter that whatever he binds on earth shall be considered bound in heaven. 

Thus in the Gospel to show Peter’s authority Jesus tells him that he would give him the keys of the kingdom of heaven.  We need to pay attention to the symbolism of the keys which are the expression of domestic authority. To have keys to a place designates a special kind of power as in receiving the charge of a house or vehicle.   In the past when kings ruled over people, whosoever was given the keys by the king was the highest official in the realm under the king, a chief executive officer. The symbolism of the keys would not escape people in those days. The symbolism of the keys here expresses the authority given by Jesus to Peter and his successors. The meaning of the conferral of the keys could not be explained or rationalized away, as many rationalize it today when they view the Church as merely a political institution. The keys to the kingdom come from God and from no one else. Peter has been given the authority of the keys directly by Jesus. When Jesus ordered His disciples not to tell anyone that He was the Messiah, surely, the disciples must have misunderstood his strange command.  They would have liked to experience the glory of the Messiah and relish his popularity. They could not surely understand the mysterious ways of the Lord, that the Kingdom of God was not a physical Kingdom. From today’s reading we learn that sometimes in life, we do not understand why things happen the way they do.


A doctor was sharing his unique experience.  A patient came to his office seeking a hip replacement. His former cardiologist believed that the man’s heart was too weak for him to survive a major operation. However, a new cardiologist had stated that while the man faced risks in undergoing surgery, his condition appeared stable. Therefore, he gave his permission to proceed. Our patient soon passed all preliminary tests. Still, on surgery day the doctor could sense tension in the room among the nurses, anesthesiologist, and him. The patient could likely sense this as well. He said, “Doctor, I know this is a busy time, but I would like to ask you for one moment to pray.   The doctor narrates: “In my 20 years of medical practice, no patient had ever made such a request. All chatter ceased. With his heart monitor beeping in the background, our patient prayed for God to take care of him and all of us in the room who were trying to help him. He thanked God for the opportunity to get better, acknowledging the human limitations of the staff in trying to repair his fragile body.”  A sense of calm filled the room. The surgery was a success. In all his professional experience the doctor says, he never has felt more strongly than on that day the presence of God sent through his patient to him.