from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. more than substantial, transcending all substance; spiritual
from the GNU version of the Collaborative International Dictionary of English
- adj. More than substantial; spiritual.
from The Century Dictionary and Cyclopedia
- More than substantial; beyond the domain of matter; being more than (material) substance: used with special reference to Mat. vi. 11, where the Greek
ἐπιούσιος(‘daily’ in the authorized version) is in the Vulgate supersubstantialis.
- [Tr. Gr.
ὑπερούσιος.] Superessential; transcending all natures, all ideas, and the distinction of existence and non-existence.
"The most loving operation of God is made manifest to us by the supersubstantial Word having taken flesh integrally and truly, and having operated and suffered whatsoever befits His human and Divine operation."
For example, in the Lord's Prayer we read: "Give us this day our supersubstantial bread," instead of "our daily bread."
(Ephesians vi, 12), "supersubstantial bread" in the Lord's prayer, "he exinanited himself" (Philippians ii, 7).
So when we say, "He is great or the greatest," we seem to predicate quantity, but it is a quantity similar to this substance which we have declared to be supersubstantial; for with Him to be great and to be God are all one.
When we say God, we seem to denote a substance; but it is a substance that is supersubstantial.
Relation, for instance, cannot be predicated at all of God; for substance in Him is not really substantial but supersubstantial.
 Conceive of Him. in thy mind as a supersubstantial Substance; contemplate Him as the supreme Good, and supreme Love, and the supremely desirable intellectual Light.
Far from seeing any impediment, I see that everything invites you to do what I ask, and that you may so use the daily and supersubstantial Bread I make you this present, entreating you not to forget at the holy Altar him who makes you this prayer on the part of God
Daily is a misleading translation of the Greek epiousios, which is literally "above the essence," or "supersubstantial."
So what form does this supersubstantial bread take?
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