John is given a measuring rod and told to measure the temple of God, the altar and those who worship there, but to leave out the outer court, because it has been given to the nations, who will trample the holy city for forty-two months (vv. 1-2).
God grants his two witnesses to prophesy for 1,260 days, clothed in sackcloth. They are the two olive trees and the two lampstands that stand before the Lord of the earth. If anyone wants to harm them, fire pours from their mouth. They have power to shut the sky, to turn waters into blood and to strike the earth with plagues (vv. 3-6).
When they have finished their testimony, the beast that rises from the bottomless pit conquers and kills them. Their bodies lie in the street of the great city, symbolically called Sodom and Egypt, where their Lord was crucified. For three and a half days those who dwell on the earth rejoice and exchange gifts, because these prophets had tormented them. Then a breath of life from God enters them, they stand up and go up to heaven in a cloud. A great earthquake strikes, a tenth of the city falls, seven thousand people are killed, and the rest give glory to the God of heaven (vv. 7-14).
The seventh trumpet sounds and loud voices in heaven say that the kingdom of the world has become the kingdom of our Lord and of his Christ, and he will reign forever and ever. The twenty-four elders worship God for taking his great power, judging the dead and rewarding his servants. God's temple in heaven is opened and the ark of his covenant is seen (vv. 15-19).