Mark 14:54
But Peter had followed Him from a distance, right into the courtyard of the head priest. He was sitting there with the [Jewish] officers, warming himself by the light of the fire.
John 18:18
Now the [head priest's] slaves and the [Temple] guards were standing around a charcoal fire they had made to warm themselves by, because it was cold. And Peter was also warming himself with them.
Matthew 26:3
Then the leading priests and elders of the [Jewish] people were gathered in the courtroom of the head priest, named Caiaphas.
Matthew 26:58
But Peter followed Him from a distance [as they were going] to the courtyard of the head priest. He went inside [i.e., eventually. See John 18:15-16] and sat down with the [Jewish] officers to see how things would turn out [i.e., with Jesus' trial].
Mark 14:29-31
But Peter said to Him, "Although everyone else will have doubts [about you], I never will."
Mark 14:38
Be alert and pray, so that you do not give in to temptation. The spirit of a person is truly willing [i.e., to do a certain thing], but his physical nature is [often] too weak [to carry it out]."
Mark 14:67-68
and seeing Peter warming himself by the fire, she looked at him and said, "You were with Jesus from Nazareth, too."
Luke 22:44
And He became anguished as He prayed more fervently; even His sweat was like drops of blood falling to the ground.
Luke 22:55-56
And when they [i.e., the priest's servants] had built a fire in the middle of the courtyard, they sat down together [i.e., to warm themselves. See Mark 14:67], with Peter [sitting] among the group.
John 18:15-16
Simon Peter followed along with another disciple. [Note: Some think this refers to the apostle John himself, but there is no strong evidence in favor of that conclusion]. Now that disciple was [well-] known to the head priest, so was able to enter his courtyard with Jesus
John 18:25
Now Simon Peter had been standing and warming himself [by the outdoor charcoal fire]. So, someone asked him, "Are you not one of His disciples, too?" Peter denied it, saying, "[No], I am not."