The Second Letter of Peter in the New Testament is not actually by the apostle Peter as New Testament scholars have long realised. Despite its claim to be an eyewitness to the life of Jesus it is a forgery. Christians tend not to know this and assume, wrongly, that it is authentic. Here is an extract from the prestigious Oxford Dictionary of the Christian Church:
The implications of these findings are profound and disturbing. If it is ‘virtually impossible’ to believe that the apostle Peter was the author of 2 Peter then the New Testament contains a letter that deliberately sets out to deceive its readership into believing it is an authentic apostolic witness to the actual life of Jesus. But in reality this is a deception. A lie.
The trustworthiness of the New Testament is shattered.