And it came to pass about eight days after these sayings, he took Peter and John and James, and went up into a mountain to pray.
All Commentaries on Luke 9:28 Go To Luke 9
Ambrose of Milan
AD 397
Only three, three chosen, were led to the mountain…. This perhaps means none can see the glory of the resurrection except he who has preserved the mystery of the Trinity intact with the undefiled purity of faith. Peter, who received the keys of the kingdom, John, to whom his mother was entrusted, and James, who was the first to mount a bishop’s throne, ascended.