Angels are purely spiritual beings. A brick is a purely material being. Man, with body and soul, is partly material and partly spiritual. God has no material body, and is purely spiritual. To complete the external manifestations of His perfections, He created beings of a purely spiritual nature—angels. The angels, then, are definite beings which have the qualities belonging to our souls, but not those of our bodies. Now our souls have two chief faculties—intelligence and will, and these are possessed by angels. But since they are purely spiritual they cannot be seen by our eyes any more than can God Himself.
Radio Replies Volume 1 by Rev. Dr. Leslie Rumble MSC and Rev. Charles Mortimer Carty
The Case for Catholicism - Answers to Classic and Contemporary Protestant Objections
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