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Summa Theologiae · I, q. 39

Question 39. Of the Persons in Relation to the Essence

Thomas Aquinas, Summa Theologiae, First Part. 8 articles.

Read in the reading room → This question at New Advent

Text: Summa Theologiae, Project Gutenberg #17611, First Part (Prima Pars), translated by the Fathers of the English Dominican Province. The First 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. Rights: Public domain (US)

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Those things considered which belong to the divine persons absolutely, we next treat of what concerns the person in reference to the essence, to the properties, and to the notional acts; and of the comparison of these with each other.

As regards the first of these, there are eight points of inquiry:

(1) Whether the essence in God is the same as the person?

(2) Whether we should say that the three persons are of one essence?

(3) Whether essential names should be predicated of the persons in the plural, or in the singular?

(4) Whether notional adjectives, or verbs, or participles, can be predicated of the essential names taken in a concrete sense?

(5) Whether the same can be predicated of essential names taken in the abstract?

(6) Whether the names of the persons can be predicated of concrete essential names?

(7) Whether essential attributes can be appropriated to the persons?

(8) Which attributes should be appropriated to each person?

Articles

  1. Whether in God the Essence Is the Same As the Person?
  2. Whether It Must Be Said That the Three Persons Are of One Essence?
  3. Whether Essential Names Should Be Predicated in the Singular of the Three Persons?
  4. Whether the Concrete Essential Names Can Stand for the Person?
  5. Whether Abstract Essential Names Can Stand for the Person?
  6. Whether the Persons Can Be Predicated of the Essential Terms?
  7. Whether the Essential Names Should Be Appropriated to the Persons?
  8. Whether the Essential Attributes Are Appropriated to the Persons in a Fitting Manner by the Holy Doctors?

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, First Part. Project Gutenberg #17611. 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.