Joel 2:30-32

30And I will shew wonders in the heavens and in the earth, blood, and fire, and pillars of smoke. 31The sun shall be turned into darkness, and the moon into blood, before the great and terrible day of the LORD come. 32And it shall come to pass, that whosoever shall call on the name of the LORD shall be delivered: for in mount Zion and in Jerusalem there shall be those that escape, as the LORD hath said, and among the remnant those whom the LORD doth call.