Matt 17:5

17:5 This is my beloved Son, with whom I am well pleased. The words from heaven show the disciples how foolish Peter’s suggestion was (v. 4), and they begin to realize who Jesus is. “My beloved Son,” the designation also given at Jesus’ baptism, is the term reserved by the Father for His “only Son” (John 3:16).

listen to him. The word of God spoken through Moses and the prophets pointed to Jesus. Now the final word is spoken by God’s Son (Heb. 1:1–4).