Revelation 11:3-5

Darby Translation

³ And I will give [power] to my two witnesses, and they shall prophesy a thousand two hundred [and] sixty days, clothed in sackcloth.

⁴ These are the two olive trees and the two lamps which stand before the Lord of the earth;

⁵ and if any one wills to injure them, fire goes out of their mouth, and devours their enemies. And if any one wills to injure them, thus must he be killed.