The Lord, the Mighty One, is God,
    and he has spoken;
he has summoned all humanity
    from where the sun rises to where it sets.
² From Mount Zion, the perfection of beauty,
    God shines in glorious radiance.
³ Our God approaches,
    and he is not silent.
Fire devours everything in his way,
    and a great storm rages around him. Psalm 50:1-3

Why does a storm rage around God in this word picture?