Joel 2:29-31

Evangelical Heritage Version

²⁹ Even on the servants, both male and female,
    I will pour out my Spirit in those days.
³⁰ I will show warning signs in the heavens and on the earth:
    blood and fire and pillars of smoke.
³¹ The sun will be turned to darkness and the moon to blood,
    before the coming of the great and terrifying day of the Lord.