2 Peter 1:16-18

16For we have not followed cunningly devised fables, when we made known to you the power and coming of our Lord Jesus Christ, but were eyewitnesses of his majesty. 17For he received from God the Father honour and glory, when there came such a voice to him from the excellent glory, This is my beloved Son, in whom I am well pleased. 18And this voice which came from heaven we heard, when we were with him on the holy mount.