" I will cause wonders in the heavens and on the earth. blood and fire and pillars of smoke. The sun will be turned into darkness and the moon will turn bloodred before that great and terrible day of the Lord arrives. anyone who calls on the name of the Lord will be saved. There will be people on Mount Zion in Jerusalem who escape, just as the Lord has said. These will be among the survivors whom the Lord has called."

Joel 2:30-32