Mark 9:2
The Transfiguration
9:2 Six days later Jesus took with him Peter, James, and John and led them alone up a high mountain privately. And he was transfigured before them,
Mark 13:3
Signs of the End of the Age
13:3 So while he was sitting on the Mount of Olives opposite the temple, Peter, James, John, and Andrew asked him privately,
Mark 14:31
14:31 But Peter insisted emphatically, “Even if I must die with you, I will never deny you.” And all of them said the same thing.
Mark 14:37
14:37 Then he came and found them sleeping, and said to Peter, “Simon, are you sleeping? Couldn’t you stay awake for one hour?
Mark 14:54
14:54 And Peter had followed him from a distance, up to the high priest’s courtyard. He was sitting with the guards and warming himself by the fire.
Mark 14:70
14:70 But he denied it again. A short time later the bystanders again said to Peter, “You must be one of them, because you are also a Galilean.”
Mark 16:7
16:7 But go, tell his disciples, even Peter, that he is going ahead of you into Galilee. You will see him there, just as he told you.”