I am sure some of what I believe is incorrect, too, @Flimzy - doesn't change the fact that denying core, clear teaching from the scriptures is, by definition, unbiblical
there areas I'm sure I have some error are in far less clearly-taught and -expounded doctrinal areas (likely there are aspects of my eschatology, for example, which are erroneous)
on simple, clear things, though, if I'm in error, then the scriptures are in error - because I'm merely believing the straightforward and obvious application of the test