The apostle Peter wrote, “For we have not followed cunningly devised fables, when we made known unto you the power and coming of our Lord Jesus Christ, but were eyewitnesses of his majesty” (2 Pet. 1:16). False teachers can be cunning. Some have vivid imaginations. They can fabricate elaborate tales. Peter warned of false prophets who lead their followers to destruction by their imaginative heresies (2 Pet. 2:1-3). However, the imaginations of men are not the source of the account of the life, death, burial, and resurrection of Jesus Christ, the Son of God. Honest men, such as Peter, witnessed these events.

Later in this passage, Peter noted the divine origin of the Scriptures: “And so we have the prophetic word confirmed, which you do well to heed as a light that shines in a dark place, until the day dawns and the morning star rises in your hearts; knowing this first, that no prophecy of Scripture is of any private interpretation, for prophecy never came by the will of man, but holy men of God spoke as they were moved by the Holy Spirit” (2 Pet. 1:19-21).
The prophecy of the Old Testament was made more sure by the miraculous confirmations God performed when the salvation of Christ was inaugurated. God’s voice was heard from heaven confirming that Jesus was the fulfillment of the Old Testament. Peter said, “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” (2 Pet. 1:17, 18). Remember Matthew 17:1-7 records how Peter was there as Jesus was transfigured on the mountain. He saw Moses and Elijah talking with Jesus. Peter’s suggestion to make three tabernacles, one for each of them, was met with the Father’s response, “This is My beloved Son, in whom I am well pleased. Hear Him!” (Mt. 17:5). Thus, Jesus has fulfilled and superseded the Old Testament law (Moses) and prophets (Elijah). These two men represented the law and the prophets, a frequently used designation of the Old Testament (Mt. 7:12; 11:13; 22:40; Lk. 16:16; Jn. 1:45; Acts 13:15; 24:14; Rom. 3:21). Jesus is the fulfillment, Who gives us understanding of the law and the prophets (Lk. 24:44-46). In his first epistle, Peter mentioned how the prophets of old spoke of the grace that would come through the sufferings of Christ and the glories that would follow (1 Pet. 1:10-12).
Peter himself was writing his epistles by the inspiration of the Holy Spirit. Jesus promised the apostles the Holy Spirit would guide them into all truth (Jn. 16:13). Peter received the same divine guidance as did the inspired men of old (2 Pet. 1:20-21). Over the course of 1,600 years, God used over forty individuals from different cultures, with vastly different circumstances, speaking different languages to write one unified message. God is really the one author behind the Bible. We should pay attention to the Bible as we would take notice of a bright light shining in the dark (2 Pet. 1:19).