And I thought I’d reinforce the last line that says most scholars believe that Peter is the Rock.
OK. He was the rock. But even a rock can crumble and not be stable.
Walking on water
Three of the four canonical Gospels—Matthew, Mark and John—recount the story of Jesus walking on water. Matthew additionally describes Peter walking on water for a moment, but began to sink when his faith wavered. [Matt. 14:28–31]
Washing of feet
At the beginning of the Last Supper, Jesus washed his disciples’ feet. Peter initially refused to let Jesus wash his feet, but when Jesus responded: “If I wash thee not, thou hast no part with me”, Peter replied: “Lord, not my feet only, but also my hands and my head”.[Jn. 13:2-11] The washing of feet is often repeated in the service of worship on Maundy Thursday by some Christian denominations.
**Arrest of Jesus **
Apostle Peter striking MalchusThe three synoptic Gospels all mention that, when Jesus was arrested, one of his companions cut off the ear of a servant of the High Priest.[18] The Gospel of John also includes this event, and names Peter as the swordsman and Malchus as the victim. [Jn. 18:10] Luke adds that Jesus touched the ear and miraculously healed it.[Lk. 22:50]
Denial of Jesus by Peter
All four canonical gospels recount that, during the Last Supper, Jesus foretold that Peter would deny him three times before the following cockcrow (“before the cock crows twice” in Mark’s account).
The three Synoptics and John describe the three denials as follows:
A denial when a female servant of the high priest spots Simon Peter, saying that he had been with Jesus. According to Mark (but not in all manuscripts), “the rooster crowed.” Only Luke and John mention a fire by which Peter was warming himself among other people: according to Luke, Peter was “sitting”; according to John, he was “standing.”
A denial when Simon Peter had gone out to the gateway, away from the firelight, but the same servant girl (Mark) or another servant girl (Matthew) or a man (Luke and also John, for whom, though, this is the third denial) told the bystanders he was a follower of Jesus.
According to John, “the rooster crowed.”
A denial came when Peter’s Galilean accent was taken as proof that he was indeed a disciple of Jesus. According to Matthew, Mark and Luke, “the rooster crowed.” John, though, does not mention the Galilean accent.
Matthew adds that it was his accent that gave him away as coming from Galilee. Luke deviates slightly from this by stating that, rather than a crowd accusing Simon Peter, it was a third individual.
**St. Peter Denying Christ **
The Gospel of John places the second denial while Peter was still warming himself at the fire, and gives as the occasion of the third denial a claim by someone to have seen him in the garden of Gethsemane when Jesus was arrested.