"You are the Christ, the Son of the living God" (Mt 16: 16): this is the confession of faith made by the Prince of the Apostles... Christ's response echoes forcefully in our hearts: "You are Peter, and on this rock I will build my Church" (Mt 16: 18). The Evangelist John testifies that Jesus gave Simon the name "Cephas" at their first meeting, when his brother Andrew had brought him to him (cf. Jn 1: 41-42). On the other hand, Matthew's account puts the greatest emphasis on Christ's action by situating it at an important moment in the messianic ministry of Jesus, who explains the significance of the name "Peter" by relating it to the building of his Church.
"You are the Christ": the Church is founded on Peter's profession of faith and on Jesus' subsequent declaration: "You are Peter". An invincible foundation, against which the forces of evil can never prevail: this foundation is safeguarded by the very will of the "Father who is in heaven" (Mt 16: 17). The Chair of Peter... is not based on human assurances—"flesh and blood"—but on Christ, the cornerstone. And like Simon, we too are "blessed", for we know we have no reason to boast except in the eternal and providential plan of God...
"I myself will search for my sheep, and I will make them lie down" (Ez 34: 11, 15). "I myself ": these are the most important words, for they express God's determination to take the initiative in personally caring for his people. We know that the promise—"I myself "—came true. It came true in the fullness of time, when God sent his Son, the Good Shepherd, to feed his flock "in the strength of the Lord, in the majesty of the name of the Lord" (Mi 5: 4). He sent him to gather into one the dispersed children of God by offering himself as the lamb, the meek victim of expiation, on the altar of the Cross.
It is this model of the Shepherd which Peter and the other Apostles learned to recognize and imitate by being with Jesus and sharing in his messianic ministry (cf. Mk 3: 14-15). We hear an echo of it [when] Peter calls himself "a witness of the sufferings of Christ as well as a partaker in the glory that is to be revealed" (1 Pt 5: 1). Peter the shepherd is totally moulded by Jesus the Shepherd and by the dynamism of his paschal mystery. The "Petrine ministry" is rooted in this unique conformation to Christ the Shepherd on the part of Peter and his Successors, a conformation which is based on a special charism of love: "Do you love me more than these? ... Feed my lambs" (Jn 21: 15).
On an occasion such as this, the Successor of Peter cannot forget what happened before Christ's Passion in the Garden of Olives after the Last Supper. None of the Apostles seemed to realize what was about to happen and Jesus knew that well: he knew he had to go there to watch and to pray, and thus prepare for "his hour", the hour of his death on the Cross.
He had told the Apostles: "You will all fall away; for it is written, "I will strike the shepherd, and the sheep will be scattered'" (Mk 14: 27). And Peter replied: "Even though they all fall away, I will not" (Mk 14: 29). Never will I fall away, never will I leave you.... And Jesus said to him: "Truly, I say to you, this very night, before the cock crows twice, you will deny me three times" (Mk 14: 30). "If I must die with you, I will not deny you" (Mk 14: 31), Peter replied vehemently and the other Apostles with him. And Jesus said: "Simon, Simon, behold, Satan demanded to have you, that he might sift you like wheat, but I have prayed for you that your faith may not fail; and when you have turned again, strengthen your brethren" (Lk 22: 31-32).
This is Christ's promise, our consoling certainty: the Petrine ministry is not founded on human abilities and strengths, but on the prayer of Christ who implores the Father that Simon's faith "may not fail" (Lk 22: 32). When he has "turned again", Peter will be able to carry out his service among his brethren. The Apostle's repentance—we could almost say his second conversion—becomes the decisive turning point on his journey of following the Lord.
Dear brothers and sisters...Christ's words to Peter must never be forgotten... [We] must be inspired by a deep spirit of conversion. We are helped in this by Peter's example, his experience of human weakness which led him, shortly after the conversation with Jesus just recounted, to forget the promises he had made with such insistence and to deny his Lord. Despite his sin and limitations, Christ chose him and called him to a most high task: that of being the foundation of the Church's visible unity and of strengthening his brethren in the faith.
The decisive moment occurred on the night between the Thursday and Friday of the Passion. Christ, led out of the high priest's house, looked directly at Peter. The Apostle, who had just denied him three times, was struck by that gaze and understood everything. He remembered the Master's words and felt pierced to the heart. "And he went out and wept bitterly" (Lk 22: 62).
We are so deeply moved by Peter's tears as to be spurred to an authentic inner purification. "Depart from me, for I am a sinful man, O Lord", he exclaimed one day after the miraculous catch (Lk 5: 8). Dear brothers and sisters, let us make Peter's invocation our own... Christ will renew his wonders for us too, we hope with humble trust: he will grant us a superabundance of his healing grace and will work new miraculous catches, filled with promise for the Church's mission in the third millennium.
Blessed Virgin, who accompanied the first steps of the newborn Church with your prayer, watch over our... journey. Grant that, like Peter, we may experience Christ's continual support. Help us to live our mission of service to the Gospel in fidelity and joy, as we await the glorious return of our Lord, Jesus Christ, the same yesterday, today and for ever.