JMNT(i)
19 For you see, JUST AS through the unwillingness to listen, or to pay attention, resulting in disobedience (or: the erroneous hearing leading to disobedience)
of the one person THE MANY (= the mass of humanity)
were rendered (established; constituted; placed down and made to be)
sinners (failures; ones who diverge and miss the target),
THUS – in the same way – ALSO through the submissive listening and paying attention resulting in obedience of the One, THE MANY (= the mass of humanity)
will continue being rendered (placed down and established as; constituted; appointed to be)
just ones (folks who have been rightwised; people in the Way pointed out; righteous ones who are free from guilt; fair, equitable, rightly-turned folks in right, covenant relationships).