It would be the same in the church that is spread throughout the world, which is called a communion because it is like a single body under a single head. It is recognized that the head governs the body beneath itself at will. The head is after all the locus of our discernment and our volition, and the body acts at the behest of our discernment and volition to the point that the body is pure obedience. The body is incapable of doing anything except at the behest of the discernment and volition in the head; and in similar fashion we of the church can do nothing apart from God. It does seem as though the body acts on its own—as though hands and feet move of their own accord when we do something, as though mouth and tongue vibrate of their own accord when we say something—and yet nothing whatever is done “on its own.” It is prompted by the stimulus of our volition and the consequent thinking of the discernment in the head.
Just think. If one body had many heads, and each head had its own agenda based on its mind and its volition, could the body survive? There could be no unanimity among them the way there is with a single head.
It is the same in the heavens, which consist of millions of angels, as it is in the church. Unless every single angel focused on one God, one angel would move away from another and heaven would fall apart. So an angel who even thinks about many gods instantly disappears, exiled to the very edge of heaven, and collapses.
Since the whole heaven and everything in it depend on a single God, it is the nature of angelic speech to come to a close in a particular harmony that flows from heaven’s own harmony. This is a sign that it is impossible for angels to think of more than one God. Their speech follows from their thought.
Surely everyone of sound reason perceives the fact that Divinity is not divisible, that there is not a multiplicity of infinite, uncreated, omnipotent beings, or gods. Suppose some irrational soul were to say that there could be a multiplicity of infinite, uncreated, omnipotent beings, or gods, if only they had a single “same essence,” and that this would result in one being who was infinite, uncreated, omnipotent, and god. Would not that single same essence have one “same identity”? And it is not possible for many beings to have the same identity. If this individual were to say that one is derived from the other, then the one that is derived from the other is not God in and of himself; yet God in and of himself is the source of all (see Section 16 above).
from Divine Love and Wisdom, Sections 25-27
Section 16: Published 4/14/2018