2 Peter 1:16-17

16We told you that our Lord Jesus Christ is powerful. We also told you that he will return to earth again. We were not telling you false stories that came from people's clever ideas. Instead, we were telling you what we ourselves had seen. We ourselves saw that the Lord Jesus is very great.

17We were with him on the holy mountain when his Father God spoke to him. God gave honour to his Son, Jesus, and he said that Jesus is great. We ourselves heard God's voice speak to Jesus from heaven above where God rules with power. He said: ‘This is my Son and I love him. He makes me very happy.’