Matthew 17:1
Six days later Jesus took with him Peter, James, and John the brother of James, and led them privately up a high mountain.
Matthew 26:37
He took with him Peter and the two sons of Zebedee, and became anguished and distressed.
Mark 5:37
He did not let anyone follow him except Peter, James, and John, the brother of James.
Luke 9:28-36
Now about eight days after these sayings, Jesus took with him Peter, John, and James, and went up the mountain to pray.
Mark 9:2-13
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,
Luke 8:51
Now when he came to the house, Jesus did not let anyone go in with him except Peter, John, and James, and the child's father and mother.
2 Corinthians 13:1
This is the third time I am coming to visit you. By the testimony of two or three witnesses every matter will be established.
2 Peter 1:18
When this voice was conveyed from heaven, we ourselves heard it, for we were with him on the holy mountain.