Revelation 7:1; Revelation 8:2-5

1 After this I saw four angels standing at the four corners of the earth, holding back the four winds of the earth, that no wind might blow on earth or sea or against any tree.
2 Then I saw the seven angels who stand before God, and seven trumpets were given to them. 3 And another angel came and stood at the altar with a golden censer, and he was given much incense to offer with the prayers of all the saints on the golden altar before the throne, 4 and the smoke of the incense, with the prayers of the saints, rose before God from the hand of the angel. 5 Then the angel took the censer and filled it with fire from the altar and threw it on the earth, and there were peals of thunder, rumblings, flashes of lightning, and an earthquake.