John sees four angels standing at the four corners of the earth, holding back the four winds so that no wind blows on earth, sea or trees. Another angel rises from the east with the seal of the living God and cries to the four not to harm anything until the servants of God have been sealed on their foreheads (vv. 1-3).
John hears that the number of the sealed is 144,000, from all the tribes of Israel. The tribes are listed, with 12,000 from each: Judah, Reuben, Gad, Asher, Naphtali, Manasseh, Simeon, Levi, Issachar, Zebulun, Joseph and Benjamin (vv. 4-8).
Afterward John looks and sees a great multitude that no one could number, from all nations, tribes, peoples and languages, standing before the throne and before the Lamb, clothed in white robes with palm branches in their hands. They cry out that salvation belongs to our God and to the Lamb. The angels, the elders and the four living creatures fall down and worship God with a sevenfold praise (vv. 9-12).
One of the elders asks John who those clothed in white are, and John sends the question back. The elder explains that they are those who have come out of the great tribulation and have washed their robes in the blood of the Lamb. Therefore they are before the throne and serve him day and night in his temple. God will shelter them with his presence, they will hunger and thirst no more, the Lamb will shepherd them to springs of living water, and God will wipe away every tear from their eyes (vv. 13-17).