Jesus brought Peter, James and John with Him becasude they were the three who were:
-most ready to receive the truth
-acknowledged as leaders in the pack
They witnessed three life-changing events in this experience:
Transfiguration: "I (Jesus) am the Messiah!"
-All through His life, Jesus is the Messiah, only that the world does not know it yet
-Jesus presented Himself to them, declaring this as truth
Appearance of Moses and Elijah: "Jesus must fo through suffering and death to accomplish His mission."
-Luke 9 records them talking of Jesus' exodus--His journey to the cross and death
-Israel's great heroes were talking to Jesus--an act that must have convinced the disciples about Christ's accepted/claimed fate
-These characters were representatives of the Law and Prophets.
-Moses and Elijah spoke within earshot of the disciples, but in their fear, the latter did not listen to what was being discussed.
God speaks audibly: "This is My Son, whom I love, listen to Him!"
-The cloud symbolized God's presence
-Jesus, as an obedient Son, lived out John 14:31
-God's audible voice should've crushed any inkling of doubt from the disciples, leavin gthem to accept His word and live it out.
Jesus' ressurection marks the light at the end of the tunnel
*based on Mark 9:2-8
by Rev. Alex Uy