First off, I agree with Carl's response, based on my own experience
-- no Christian, claimed or otherwise, that I know is entirely
always in one situation or the other.
But there is a further observation: throughout vv. 6-10, whenever
the EAN is associated with deprecated behavior (vv. 6, 8, 10), it is
also accompanied by EIPWMEN -- "we say". I also went through and
retranslated using "whenever" rather than "if", and it "worked"
very nicely --
"Whenever we say ..., then negative consequence."
"Whenever we keep doing the positive ... then positive consequence."
So it looks to me like "John" is describing the cycle between
satisfactory and unsatisfactory behavior that many Christians
in fact experience.
Logically, what Paul says could still work -- the "if's" could
be dividing the "us" who claim to be in the group into two
categories. But that seems less likely to me.
Regards,
Jim Vellenga