Ezekiel 1:6

And every one had four faces, and every one had four wings.

Ver. 6. And every one had four faces.] To set forth, saith an expositor, that the power of angels is exercised about all creatures. It is as if the angels did bear on them the heads of all living creatures - i.e., did comprehend in themselves all the elements and all the parts of the world; not as if they did move or act by their own power, but as they are God's hands and agents, employed by him at pleasure, for the good of his Church especially, Heb 1:14 as being fit and ready to every good work. So should we strive to be. Tit 3:1

And every one had four wings.] To set forth their agility, their incredible swiftness, far beyond that of the sun, which yet, if Bellarmine a reckoneth right, runneth, in the eighth part of an hour, seven thousand miles; others say many more.

a De Ascens. ment. in Deum, grad. 7.