Joel 2:28-31

28And afterward, I will pour out My Spirit on all people. Your sons and daughters will prophesy, your old men will dream dreams, your young men will see visions.29Even on My menservants and maidservants, I will pour out My Spirit in those days.30I will show wonders in the heavens and on the earth, blood and fire and columns1 of smoke.31The sun will be turned to darkness and the moon to blood before the coming of the great and awesome2 Day of the LORD.