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Summa Theologiae · III, q. 24, a. 4

Whether Christ's Predestination Is the Cause of Ours?

Thomas Aquinas, Summa Theologiae, Third Part, question 24, Of the Predestination of Christ, article 4. About 2 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 Christ's predestination is not the cause of ours. For that which is eternal has no cause. But our predestination is eternal. Therefore Christ's predestination is not the cause of ours.

Obj. 2: Further, that which depends on the simple will of God has no other cause but God's will. Now, our predestination depends on the simple will of God, for it is written (Eph. 1:11): "Being predestinated according to the purpose of Him, Who worketh all things according to the counsel of His will." Therefore Christ's predestination is not the cause of ours.

Obj. 3: Further, if the cause be taken away, the effect is also taken away. But if we take away Christ's predestination, ours is not taken away; since even if the Son of God were not incarnate, our salvation might yet have been achieved in a different manner, as Augustine says (De Trin. xiii, 10). Therefore Christ's predestination is not the cause of ours.

On the contrary, It is written (Eph. 1:5): "(Who) hath predestinated us unto the adoption of children through Jesus Christ."

I answer that, if we consider predestination on the part of the very act of predestinating, then Christ's predestination is not the cause of ours; because by one and the same act God predestinated both Christ and us. But if we consider predestination on the part of its term, thus Christ's predestination is the cause of ours: for God, by predestinating from eternity, so decreed our salvation, that it should be achieved through Jesus Christ. For eternal predestination covers not only that which is to be accomplished in time, but also the mode and order in which it is to be accomplished in time.

Replies Obj. 1 and 2: These arguments consider predestination on the part of the act of predestinating.

Reply Obj. 3: If Christ were not to have been incarnate, God would have decreed men's salvation by other means. But since He decreed the Incarnation of Christ, He decreed at the same time that He should be the cause of our salvation.

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.