Columbia subject headings:
Bible. Epistle of John, 1st--Criticism, interpretation, etc.
Bible. Epistle of John, 1st--Introductions.
Harvard subject headings:
Bible. Epistle of John, 1st--Criticism, interpretation, etc.
Bible. Epistle of John, 1st--Introductions.
Princeton subject headings:
Bible. N.T. I John--Criticism, interpretation, etc.
Bible. N.T. I John--Introductions.