Revelation 11:1-5

Then there was given to me a measuring rod like a staff; and someone said, “Get up and measure the temple of God and the altar, and those who worship in it.

Leave out the courtyard which is outside the temple and do not measure it, because it has been given to the nations; and they will trample the holy city for forty-two months.

And I will grant authority to my two witnesses, and they will prophesy for 1,260 days, clothed in sackcloth.”

These are the two olive trees and the two lampstands that stand before the Lord of the earth.

And if anyone wants to harm them, fire flows out of their mouth and devours their enemies; and so if anyone wants to harm them, he must be killed in this way.