JMNT(i)
8 Since, however (or: If, really),
you are continuously bringing to its goal (finishing; bringing to fruition; perfecting; ending; bringing to a close; fulfilling)
the royal law (or: kingly custom; sovereign distribution; rule fit to guide a king),
you are performing beautifully (doing ideally; producing excellently),
down from and in accord with the Scripture, "You will continue loving your neighbor (the one near you; your associate)
as yourself." [
Lev. 19:18]
9 Yet if you habitually show favoritism (accept faces; behave with partiality),
you are continuously working error (a miss of the target; a failure; sin)
being ones by proof of guilt repeatedly convicted as transgressors (folks stepping aside or across [the line]),
under the Law (or: exposed as deviators by the custom).
10 For you see, whoever perhaps kept (or: may have guarded and observed)
the whole Law, yet possibly at some point stumbled in one thing, had become held (or: caught)
within all [
its aspects]
(or: = is liable for and susceptible to everything).