In their controversial book, The Dead Sea Scrolls Deception, the authors Michael Baigent and Richard Leigh give a theory for the long period of time between the discovery of the Dead Sea scrolls and when their contents were finally made public. They say the church was hiding evidence found in the scrolls that Jesus was a fictional character made up by the apostle Paul, who was a sleeper agent for the Romans.
If the theory sounds ludicrous, it is. These are the two crackpot authors that made up the Priory of Sion. Here