[higgmeister]

I don't go to Church but I know that those books were banned by the First Council of Nicaea (325AD) as heresy, blasphemy or in other ways did not adhere to accepted orthodox Christian faith. That is why most Christian Churches affirm their faith every week by repeating the Nicene Creed.

I recommend studying this amazing meeting of the early fathers of Christianity, hosted by Emperor Constantine. Even Nikolaos of Myra attended. We know him as Santa Claus.

[Hieronymus]

Nicaea didn’t definitively settle the Biblical Canon, or even take any steps in that direction. The fringes of the canon continued to be discussed with some intensity through the early fifth century, and only Trent definitively settles the issue. A number of late 4th and early 5th century local gatherings made practical local decisions on what would be used liturgically, which did point the way to the ultimate solution, but it was over a millennium in being ratified. (Last month I was reading John Damascene, writing in the 8th century, who excluded but quoted the deutero canon but included Clement).