{Let us not be} (m(8820)gin(936d)etha). Present middle subjunctive
(volitive), "Let us cease becoming vainglorious" (kenodoxoi),
late word only here in N.T. (kenos, doxa). Once in Epictetus in
same sense. {Provoking one another} (all(886c)ous prokaloumenoi).
Old word prokale(935c), to call forth, to challenge to combat. Only
here in N.T. and in bad sense. The word for "provoke" in  Heb
10:24  is paroxusmon (our "paroxysm"). {Envying}
(phthonountes). Old verb from phthonos. Only here in N.T.