I can tell the difference between an adjective and a noun, however.
Ephesians 1:1 Paul, an apostle of Christ Jesus through the will of God, to the saints which are at Ephesus, and
the faithful in Christ Jesus.
and to the faithful I. e. “the saints,” under a different aspect. For the word as used, of Christian believers, see Act 10:45 (“the faithful of the circumcision”); Act 16:1 (“a faithful Jewess”); 2Co 6:15 (“the faithful with the unfaithful,” i.e. the believer with the unbeliever); Col 1:2; 1Ti 4:3 (“them who are faithful and know, &c.), 1Ti 4:12 (“the faithful”), 1Ti 5:16 (“any faithful man or faithful woman”), 1Ti 6:2 (“faithful,” i.e. Christian, “masters”); Tit 1:6. These and similar passages, and the contrast of the word “unfaithful” (infidelis, infidel), show that as a designation of Christians it means not trustworthy but trustful; full of faith, in the Christian sense. On its application to the community, consider
saints Holy ones; persons possessed of holiness, separated from sin to God. It is true that this is “the language of charitable presumption”; when a community is thus described, St Paul does not thereby positively assert that each individual answers the description. But observe that this presumptive use of the word “saint” does not lower the true sense of the word, so as to make it properly mean, e. g., merely a member of a Christian community, a possessor of visible Church privileges.
Hoping this may be useful for you as you think through the difference between a noun and an adjective.
