The Two Witnesses
The Two Witnesses; the Seventh Trumpet
1 Then I was given a reed like a measuring rod. And the angel stood, saying, "Rise and measure the temple of God, the altar, and those who worship there. 2But leave out the court which is outside the temple, and do not measure it, for it has been given to the Gentiles. And they will tread the holy city underfoot for forty-two months. 3And I will give power to my two witnesses, and they will prophesy one thousand two hundred and sixty days, clothed in sackcloth."
4These are the two olive trees and the two lampstands standing before the God of the earth. 5And if anyone wants to harm them, fire proceeds from their mouth and devours their enemies. And if anyone wants to harm them, he must be killed in this manner. 6These have power to shut heaven, so that no rain falls in the days of their prophecy; and they have power over waters to turn them to blood, and to strike the earth with all plagues, as often as they desire.
The Witnesses Killed
7 When they finish their testimony, the beast that ascends out of the bottomless pit will make war against them, overcome them, and kill them. 8And their dead bodies will lie in the street of the great city which spiritually is called Sodom and Egypt, where also our Lord was crucified. 9Then those from the peoples, tribes, tongues, and nations will see their dead bodies three-and-a-half days, and not allow their dead bodies to be put into graves. 10 And those who dwell on the earth will rejoice over them, make merry, and send gifts to one another, because these two prophets tormented those who dwell on the earth.
The two witnesses are Jews and Christians
I lean more toward Elijah and Moses myself. But then we've discussed this before and will make no headway in convincing each other