11 “Among the gods there is none like You, O Lord”. What did he say? “Among the gods,” etc. Let the Pagans make for themselves what gods they will; let them bring workmen in silver and in gold, furbishers, sculptors; let them make gods. What kind of gods? Having eyes, and seeing not; and the other things which the Psalm mentions in what follows. But we do not worship these, he says; we do not worship them, these are symbols. What then do ye worship? Something else that is worse: for the gods of the gentiles are devils.
What then? Neither, say they, do we worship devils. You have certainly nothing else in your temples, nothing else inspires your prophets than a devil. But what do ye say? We worship Angels, we have Angels as gods. You know not altogether what Angels are. Angels worship the one God, and favour not men who wish to worship Angels and not God. For we find Angels of high rank forbidding men to adore them, and commanding them to adore the true God. But when they say Angels, suppose they mean men, since it is said, “I have said, You are Gods, and all the children of the Most Highest.” Whatever man thinks to the contrary, that which was made is not like Him who made it.
Except God, whatever else there is in the universe was made by God. What a difference there is between Him who made, and that which was made, who can worthily imagine? Therefore this man said, “there is none like You, O Lord: there is not one that can do as you do.” But how much God is unlike them he said not, because it cannot be said. Let your Charity attend: God is ineffable: we more easily say what He is not than what He is. You think of the earth; this is not God: you think of the sea; this is not God: of all things which are in the earth, men and animals; this is not God: of all things which are in the sea, which fly through the air; this is not God: whatever shines in the sky, the stars, sun and moon; this is not God: the heaven itself; this is not God: think of the Angels, Virtues, Powers, Archangels, Thrones, Seats, Principalities; this is not God.
What is He then? I could only tell you, what He is not. Askest thou what He is? What “the eye has not seen, nor the ear heard, nor has risen up into the heart of man.”...
Source: The Enarrations, or Expositions, on the Psalms (New Advent)