{Howbeit} (pl(886e)). Common after ouk allo as a preposition
with the ablative ( Mr 12:32 ), but here a conjunction as in  Php
1:18 . {Hold fast} (krat(8873)ate). First aorist active imperative
of krate(935c), either ingressive (get a grip on) or constative
(hold on as a single decisive effort). See present imperative
kratei in  3:11  (keep on holding). {Till I come} (achri hou
an h(8878)(935c)). Indefinite temporal clause with achri hou (until
which time) with modal an and either the future active
indicative or the first aorist active subjunctive of h(886b)(935c)
(usual idiom with achri in Revelation as in  7:3  15:8  20:3,5 ).