Roman Catechism 34.37

Chapter 34 — Part IV: Prayer — The Lord's Prayer: Introduction and Our Father Who Art in Heaven

Section 37. Meaning Of These Words — All who have a correct idea of God will grant that He is where and in all places. This is not to be taken in the sense that He is distributed into parts and that He occupies and governs one place with one part and another place with another part. God is a Spirit, and therefore utterly incapable of division into parts. Who will dare to assign to any particular place or circumscribe within any limits that God who says of Himself: Do I not fill heaven and earth? On the contrary, these words must be taken in this sense, that by His power and virtue He embraces heaven and earth and all things contained therein; but that He Himself is not contained in any place. God is present to all things, either creating them, or preserving them after He has created them; but He is confined to no place, is limited by no bounds, nor in any way hindered from being everywhere present by His substance and power, as is indicated by holy David in the words: If I ascend into heaven thou art there.