five gospels....
the THEORY is, that it's not the quality, but the timing of the call..
from the first century to whatever date, all who became christians, and lived in faithfullness had the heavenly hope -- like it or not, they would go to heaven..
in THEORY, a member of the present 'earthly class' could be more spiritual, more zealous etc... than some previous member of the anointed class.
however, in the event, that a 'called' member of the 144,000 dies unfaithful...then it's logical that god could 'call' a replacement -- whoever he may choose to call!!!
well! that's the theory...now let's see what evidence we can find in the bible for that..eh!!!!!!