{Be not terrified} (m(8820)pto(8874)h(8874)e). First aorist passive
subjunctive with m(885c) from ptoe(935c) an old verb to terrify, from
ptoa, terror. In the N.T. only here and  Lu 24:37 . {First}
(Pr(9374)on). It is so easy to forget this and to insist that the
end is "immediately" in spite of Christ's explicit denial here.
See  Mt 24:4-42  Mr 13:1-37  for discussion of details for  Lu
21:8-36 , the great eschatological discourse of Jesus