Correct answer: The events he witnessed.
Concerning the life and ministry of Jesus, Peter wrote about the events he witnessed.
In his 2nd Epistle to the church, the Apostle Peter wrote:
<em>We did not follow cleverly devised stories when we told you about the coming of our Lord Jesus Christ in power, but we were eyewitnesses of his majesty. He received honor and glory from God the Father when the voice came to him from the Majestic Glory, saying, “This is my Son, whom I love; with him I am well pleased.” We ourselves heard this voice that came from heaven when we were with him on the sacred mountain </em> (2 Peter 1:16-18 New International Version).
Peter also added this emphasis about all the writings of the Bible:
<em>We also have the prophetic message as something completely reliable, and you will do well to pay attention to it, as to a light shining in a dark place, until the day dawns and the morning star rises in your hearts. Above all, you must understand that no prophecy of Scripture came about by the prophet’s own interpretation of things. For prophecy never had its origin in the human will, but prophets, though human, spoke from God as they were carried along by the Holy Spirit</em> (2 Peter 1:19-21 NIV).