Peter, James, and John saw Jesus speaking with Moses and Elijah. That moved Peter to seek to honor all three equally, but the Father declared that Jesus is His Son, and to hear Him. That frightened the three disciples, and they fell on their faces, and after Jesus touched them, reassuring and comforting them, telling them to arise and not be afraid, Matthew said,
“When they had lifted up their eyes, they saw no one but Jesus only” (Matthew 17:8).
How then did they see Jesus from then on? How would you look at Him, although appearing as a normal man, but you knew so much more about Him?