In Revelation we find:
Revelation 22:18-19It says "this scroll" four times. That's pretty specific.I warn everyone who hears the words of the prophecy of this scroll: If anyone adds anything to them, God will add to that person the plagues described in this scroll.
And if anyone takes words away from this scroll of prophecy, God will take away from that person any share in the tree of life and in the Holy City, which are described in this scroll.
Rember, the BIBLE was not compiled into the version we have today at the time this was written, so, if nothing could be 'added' to it, them we would NOT have the 'bible' as we do now.
Yeah; the MORMONs use this to claim that therefore their 'SCRIPTURES' are just as valid; but they fail on any number of other levels.
Well, no printing presses until the 1400’s, so everything was pretty much in scrolls, many years before Guttenberg.