The gospel of John Nicodemus or Nicolaitans (both forms of Nicholas), was a Pharisee as written in his own testimony about him self.

The book is clearly made up on multiple points, some include using the term EGO I-mee, which Yeshua said not to follow and that they would use it to deceive many. Destroying of the temple and saying it would be rebuilt in 3 days; which is said to be a lie in Matt and Mark. Being lead up to Pilate silently. Only to the lost sheep of Israel. Etc...