Read Mark 9:2-8.

“And there was a cloud that overshadowed them: and a voice came out of the cloud, saying, ‘This is my beloved Son: hear him’” (v. 7).

In this mountain-top experience of the transfigured Jesus, the Lord showed the His glory to His inner circle, Peter, James, and John. Moses and Elijah were also present. Jesus is seen as the perfect fulfillment of the Old Testament law given by Moses and the prophets’ messages represented by Elijah. Jesus’ glorious appearance and approval by the voice of the heavenly Father, “This is my beloved Son: hear him” (v. 7) revealed Him as the eternal Saviour of the world.
Dr David McKenna said Jesus’ sinlessness, Sonship, and suffering were all revealed when God the Father said, “Hear him" v. 7. Peter wanted to build three tabernacles on the mountain. Still, they were to “follow” Jesus until His death, resurrection, and ascension. So we are to “hear Him” and follow Him today.
“And He walks with me, and He talks with me,
And He tells me I am His own;
And the joy we share as we tarry there,
None other has ever known.”
---C. Austin Miles

Don’t just “hear” Jesus, but tell others who He is. (David Fruth)