92. Who, then, can dare to say that the substance of the Holy Spirit is created, at Whose shining in our hearts we behold the beauty of divine truth, and the distance between the creature and the Godhead, that the work may be distinguished from its Author? Or of what creature has God so spoken as to say: “I will pour out of My Spirit”? He said not Spirit, but “of My Spirit,” for we are not able to receive the fulness of the Holy Spirit, but we receive as much as our Master divides to us of His own according to His will. For as the Son of God thought it not robbery that He should be equal to God, but emptied Himself, that we might be able to receive Him in our minds; but He emptied Himself not that He was void of His own fulness, but in order that He, Whose fulness I could not endure, might infuse Himself into me according to the measure of my capacity, in like manner also the Father says that He pours out of the Spirit upon all flesh; for He did not pour Him forth wholly, but that which He poured forth abounded for all.
Complete source paragraph · On the Holy Spirit, Chapter VIII., source paragraph 5 · Original source