Chapter 10 — Part I: The Creed — Article VIII: I Believe in the Holy Ghost
Section 19. This same truth is still more explicitly declared in these words added to this Article of the Creed by the Fathers of the First Council of Constantinople to refute the impious folly of Macedonius: And in the Holy Ghost, the Lord and giver of life, who proceedeth from the Father, and the Son; who together with the Father and the Son, is adored and glorified; who spoke by the prophets.