John 18:8-9, 15-16

Jesus answered, “I told you that I am He; so if you seek Me, let these go their way,” to fulfill the word which He spoke, “Of those whom You have given Me I lost not one.”

Simon Peter was following Jesus, and so was another disciple. Now that disciple was known to the high priest, and entered with Jesus into the court of the high priest, but Peter was standing at the door outside. So the other disciple, who was known to the high priest, went out and spoke to the doorkeeper, and brought Peter in.