{What shall I do?} (Ti poi(8873)(933b)). Deliberative future
indicative or aorist subjunctive (same form). This detail only in
Luke. Note the variations in all three Gospels. All three have
"will reverence" (entrap(8873)ontai) for which see Matthew and
Mark. {It may be} (is(9373)). Perhaps, from isos, equal. Old
adverb, but only here in the N.T.