When he opened the sixth seal, I looked, and behold, there was a great earthquake; and the sun became black as sackcloth, the full moon became like blood, and the stars of the sky fell to the earth as the fig tree sheds its winter fruit when shaken by a gale; the sky vanished like a scroll that is rolled up, and every mountain and island was removed from its place. Then the kings of the earth and the great men and the generals and the rich and the strong, and every one, slave and free, hid in the caves and among the rocks of the mountains, calling to the mountains and rocks, “Fall on us and hide us from the face of him who is seated on the throne, and from the wrath of the Lamb; for the great day of their wrath has come, and who can stand before it?”
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. Then I saw another angel ascend from the rising of the sun, with the seal of the living God, and he called with a loud voice to the four angels who had been given power to harm earth and sea, saying, “Do not harm the earth or the sea or the trees, till we have sealed the servants of our God upon their foreheads.” And I heard the number of the sealed, a hundred and forty-four thousand sealed, out of every tribe of the sons of Israel….
–Revelation 6:12-7:4