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Summa Theologiae · III, q. 10, a. 1

Whether the Soul of Christ Comprehended the Word or the Divine Essence?

Thomas Aquinas, Summa Theologiae, Third Part, question 10, Of the Beatific Knowledge of Christ's Soul, article 1. About 3 min.

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Text: Summa Theologiae, Project Gutenberg #19950, Third Part (Tertia Pars), translated by the Fathers of the English Dominican Province. The Third Part of the Summa in the English Dominican translation (first printed 1911 to 1925; second and revised edition from 1920). A sample check on 2026-11-09 against pre-1931 printings at the Internet Archive (first printings of 1915 and 1916 and the second and revised edition of the 1920s) found that the article text matches, with no 1947 introduction, synopsis, or index. The phrase “From the Complete American Edition” in Gutenberg's catalog title is a provenance note only. Question and article numbers were added by the transcriber. The Gutenberg text ends at question 90 of the Third Part, where Aquinas stopped writing; the Supplement is a separate edition here, transcribed from 1917 to 1922 printings of the same translation. Rights: Public domain (US)

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Objection 1: It would seem that the soul of Christ comprehended and comprehends the Word or Divine Essence. For Isidore says (De Summo Bono i, 3) that "the Trinity is known only to Itself and to the Man assumed." Therefore the Man assumed communicates with the Holy Trinity in that knowledge of Itself which is proper to the Trinity. Now this is the knowledge of comprehension. Therefore the soul of Christ comprehends the Divine Essence.

Obj. 2: Further, to be united to God in personal being is greater than to be united by vision. But as Damascene says (De Fide Orth. iii, 6), "the whole Godhead in one Person is united to the human nature in Christ." Therefore much more is the whole Divine Nature seen by the soul of Christ; and hence it would seem that the soul of Christ comprehended the Divine Essence.

Obj. 3: Further, what belongs by nature to the Son of God belongs by grace to the Son of Man, as Augustine says (De Trin. i, 13). But to comprehend the Divine Essence belongs by nature to the Son of God. Therefore it belongs by grace to the Son of Man; and thus it seems that the soul of Christ comprehended the Divine Essence by grace.

On the contrary, Augustine says (Qq. lxxxiii, qu. 14): "Whatsoever comprehends itself is finite to itself." But the Divine Essence is not finite with respect to the soul of Christ, since It infinitely exceeds it. Therefore the soul of Christ does not comprehend the Word.

I answer that, As is plain from Q. 2, AA. 1, 6, the union of the two natures in the Person of Christ took place in such a way that the properties of both natures remained unconfused, i.e. "the uncreated remained uncreated, and the created remained within the limits of the creature," as Damascene says (De Fide Orth. iii, 3, 4). Now it is impossible for any creature to comprehend the Divine Essence, as was shown in the First Part (Q. 12, AA. 1, 4, 7), seeing that the infinite is not comprehended by the finite. And hence it must be said that the soul of Christ nowise comprehends the Divine Essence.

Reply Obj. 1: The Man assumed is reckoned with the Divine Trinity in the knowledge of Itself, not indeed as regards comprehension, but by reason of a certain most excellent knowledge above the rest of creatures.

Reply Obj. 2: Not even in the union by personal being does the human nature comprehend the Word of God or the Divine Nature, for although it was wholly united to the human nature in the one Person of the Son, yet the whole power of the Godhead was not circumscribed by the human nature. Hence Augustine says (Ep. ad Volusian. cxxxvii): "I would have you know that it is not the Christian doctrine that God was united to flesh in such a manner as to quit or lose the care of the world's government, neither did He narrow or reduce it when He transferred it to that little body." So likewise the soul of Christ sees the whole Essence of God, yet does not comprehend It; since it does not see It totally, i.e. not as perfectly as It is knowable, as was said in the First Part (Q. 12, A. 7).

Reply Obj. 3: This saying of Augustine is to be understood of the grace of union, by reason of which all that is said of the Son of God in His Divine Nature is also said of the Son of Man on account of the identity of suppositum. And in this way it may be said that the Son of Man is a comprehensor of the Divine Essence, not indeed by His soul, but in His Divine Nature; even as we may also say that the Son of Man is the Creator.

Also online, linked only: the same translation at New Advent and the Latin text at Corpus Thomisticum. Neither is copied here.

Source: Thomas Aquinas. Summa Theologica, Third Part. Project Gutenberg #19950. Project Gutenberg record. Public domain in the USA. Outside the U.S., check local copyright rules. Project Gutenberg notices retained. The full Project Gutenberg license is kept in the hosted text.