Revelation 6:12 in the King James Version
And I beheld when he had opened the sixth seal, and, lo, there was a great earthquake; and the sun became black as sackcloth of hair, and the moon became as blood;
Context
11 A long white robe was given to each of them. They were told that they should rest yet for a while, until their fellow servants and their brothers, who would also be killed even as they were, should complete their course.
12 I saw when he opened the sixth seal, and there was a great earthquake. The sun became black as sackcloth made of hair, and the whole moon became as blood.
13 The stars of the sky fell to the earth, like a fig tree dropping its unripe figs when it is shaken by a great wind.