He bowed heaven and descended,
and darkness was under His feet.
And He rode upon the cherubim, and flew;
He flew upon the wings of the wind.
(Psalm 17:10-11, Septuagint)

He rode upon the cherubim, and flew:
And He was exalted above the fullness of knowledge,
that no man should come to Him 
but by love,
for “love is the fulfillment of the law.”
(Rom 13:10)
St. Augustine, Exposition on the Book of Psalms