By themselves — That is, separate from the multitude: Apart — From the other apostles: and was transfigured — The Greek word seems to refer to the form of God, and the form of a servant, mentioned by St. Paul, Philippians 2:6-7, and may intimate, that the Divine rays, which the indwelling God let out on this occasion, made the glorious change from one of these forms into the other. Matthew 17:1; Luke 9:28.
Related Commentaries of Mark 9:2
Mark 9:2
2 And after six days Jesus taketh with him Peter, and James, and John, and leadeth them up into an high mountain apart by themselves: and he was transfigured before them.