Joel 2:30-31

Expanded Bible

³⁰ I will show ·miracles [wonders; portents]
    in the ·sky [heavens] and on the earth:
    blood, fire, and ·thick [columns/billows of] smoke.
³¹ The sun will ·become dark [turn to darkness],
    the moon ·red as blood [^Lto blood; Rev. 6:12],
    before the ·overwhelming [great] and ·terrible [awesome] day of the Lord comes.