2 Peter 1:16 For we did not follow cunningly devised fables when we made known to you the power and coming of our Lord Jesus Christ, but were eyewitnesses of His majesty.

I often hear someone say the Bible was written by an individual or a couple of guys that made up everything.
That would take some doing with so many different styles of writing and historical information spanning millennia.
Perhaps the same things were said 2000 years ago and addressed by Peter.
He mentions “cunningly devised fables” but goes on to say he was an eyewitness of the life of Christ, recounting an event called the Transfiguration.
2 Peter 1:17-18 For He received from God the Father honor and glory when such a voice came to Him from the Excellent Glory: “This is My beloved Son, in whom I am well pleased.” And we heard this voice which came from heaven when we were with Him on the holy mountain.
The account is written in three of the four Gospels, with Matthew the only one actually at the mountain, though not a witness of it like Peter.
Certainly, there are many fictional writings in the world but the Bible is not one of them.
To deny God’s word is to deny God.