The coming of the Two Witnesses
Revelation 11:3 I will cause my two witnesses to prophesy for 1,260 days dressed in sackcloth.”
7 When they have finished their witnessing, the wild beast that ascends out of the abyss will wage war with them and conquer them and kill them. 8 And their corpses will be on the main street of the great city that is in a spiritual sense called Sodʹom and Egypt, where their Lord was also executed on the stake
At the same time as the seven headed beast begins to have authority over the earth, two God’s witnesses will be witnessing in opposition to the world and the seven headed beast of Revelation 13. They will be invincible for 1260 days. But after that the beast in Revelation 18 will kill them.
They will be like prophets in Bible times, like Moses and Aaron or like Elijah and Elisha. Those prophets in ancient times were active in a small geographic scope, but the two coming prophets will prophesy to the whole world and they will as the Revelation tells be able to strike the earth with plagues, just as Moses and Aaron could do in Egypt.