All the saved from Adam until the last person to be saved will be in the first resurrection.
Okay so the Two Witnesses who (after having been killed) "stood upon their feet" (once "the Spirit of life from God entered into them" after they had been physically "dead" and lay in the street of the great city 3.5 days) at the time of the "6th Trumpet[events]/2nd Woe" (this being BEFORE "the third woe cometh quickly" that is connecting with the "7th Trumpet [events]/3rd Woe"... and then the Vials after that (which take some time, when you read all they entail)…
So "ALL" (all saints of all times) are resurrected at the "6th Trumpet/2nd Woe" time slot (along with the Two Witnesses), according to you??
None of this (idea) matches "but EACH [G1538] IN HIS OWN ORDER" that 1Cor15:23 speaks of, and that IS Scripture (I pointed out).