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The First Council of Constantinople

Added to the Nicene Creed the clauses on the Holy Ghost, against the followers of Macedonius.

381 Constantinople
Convoked under
Pope Damasus, by the Emperor Theodosius I
Bishops present
150
What it defined
against Macedonius, who impugned the Divinity of the Holy Ghost; it added to the Nicene Creed the clauses referring to the Holy Ghost and all that follows to the end

These facts as given by the Catholic Encyclopedia (1913), "Councils" PD

Patristic

before A.D. 750
381
Event
The First Council of Constantinople

The creed is enlarged at Constantinople with the clauses on the Holy Ghost — the form said at Mass ever since.

381
A.D.
The First Council of Constantinople
“We believe in one God , the Father Almighty, maker of heaven and earth and of all things visible and invisible. And in one Lord Jesus Christ , the only begotten Son of God , begotten of his Father before all worlds, Light of Light, very God of very God , begotten not made, being of one substance with the Father , by whom all things were made. Who for us men and for our salvation came down from heaven and was incarnate by the Holy Ghost and the Virgin Mary , and was made man, and was crucified also for us under Pontius Pilate . He suffered and was buried, and the third day he rose again according to the Scriptures , and ascended into heaven, and sits at the Right Hand of the Father. And he shall come again with glory to judge both the quick and the dead. Whose kingdom shall have no end. ( I ) And [we believe ] in the Holy Ghost , the Lord and Giver-of-Life, who proceeds from the Father , who with the Father and the Son together is worshipped and glorified , who spoke by the prophets . And [we believe ] in one, holy , ( II ) Catholic and Apostolic Church. We acknowledge one Baptism for the remission of sins , [and] we look for the resurrection of the dead and the life of the world to come. Amen .”
Source
Modern · 1953 →

The in-app commentary runs from the Fathers to the early-modern record, then stops — that's where the public-domain sources end, not where the reading does. For the modern reading, follow the sources directly.