Isaiah 30:29-31

New Catholic Bible

²⁹ But as for you, your songs will be
    like those on the night of a holy festival,
and you will experience joy in your hearts
    such as occurs when, to the sound of a flute,
people make a pilgrimage to the mountain of the Lord,
    to the Rock of Israel.
³⁰ Then the Lord will make his majestic voice heard
    and allow his arm to be seen
as it descends in furious anger
    and a flame of devouring fire
    amid cloudbursts and thunderstorms and hail.
³¹ Assyria will be shattered at the voice of the Lord
    as he strikes with his rod.