Joel 2:31-32

New Century Version

³¹ The sun will become dark,
    the moon red as blood,
    before the overwhelming and terrible day of the Lord comes.
³² Then anyone who calls on the Lord
    will be saved,
because on Mount Zion and in Jerusalem
    there will be people who will be saved,
just as the Lord has said.
Those left alive after the day of punishment
    are the people whom the Lord called.