The canon of the new testament was effectively decided for the western church (at least) at the regional councils of Rome, Hippo, and Carthage in the late fourt

The canon of the new testament was effectively decided for the western church (at least) at the regional councils of Rome, Hippo, and Carthage in the late fourth century. I don't know anything about this particular text, but the canon had been established for centuries by this point. (Yes, I know it wasn't officially decided in an ecumenical council until Trent in 1545, but those three councils effectively settled the question, given the importance of the regions involved.)