Skip to content

St. Irenaeus

Short Cuts

Author and Publisher - Catholic Online

Image of St. Irenaeus

Facts

Feastday: June 28
Death: 202

The writings of St. Irenaeus entitle him to a high place among the fathers of the Church, for they not only laid the foundations of Christian theology but, by exposing and refuting the errors of the gnostics, they delivered the Catholic Faith from the real danger of the doctrines of those heretics.

He was probably born about the year 125, in one of those maritime provinces of Asia Minor where the memory of the apostles was still cherished and where Christians were numerous. He was most influenced by St. Polycarp who had known the apostles or their immediate disciples

Many Asian priests and missionaries brought the gospel to the pagan Gauls and founded a local church. To this church of Lyon, Irenaeus came to serve as a priest under its first bishop, St. Pothinus, an oriental like himself. In the year 177, Irenaeus was sent to Rome. This mission explains how it was that he was not called upon to share in the martyrdom of St Pothinus during the terrible persecution in Lyons. When he returned to Lyons it was to occupy the vacant bishopric. By this time, the persecution was over. It was the spread of gnosticism in Gaul, and the ravages it was making among the Christians of his diocese, that inspired him to undertake the task of exposing its errors. He produced a treatise in five books in which he sets forth fully the inner doctrines of the various sects, and afterwards contrasts them with the teaching of the Apostles and the text of the Holy Scripture. His work, written in Greek but quickly translated to Latin, was widely circulated and succeeded in dealing a death-blow to gnosticism. At any rate, from that time onwards, it ceased to offer a serious menace to the Catholic faith.

The date of death of St. Irenaeus is not known, but it is believed to be in the year 202. The bodily remains of St. Irenaeus were buried in a crypt under the altar of what was then called the church of St. John, but was later known by the name of St. Irenaeus himself. This tomb or shrine was destroyed by the Calvinists in 1562, and all trace of his relics seems to have perished.


St. Irenaeus Comments


More Saints






Browse Saints by Category


Popular Saints

Rank

Saint

75.

Image of Pope Saint Gregory the Great

Pope Saint Gregory the Great

Pope Saint Gregory I, also known as the Great, was the Pope of the Catholic Church between 590 and 604 AD. Gregory was born around 540 in Rome. The exact date of his birth is unknown. ... continue reading

76.

Image of St. Barbara

St. Barbara

Saint Barbara, also known as the Great Martyr Barbara, was an early Christian Greek martyr born mid-third century in Heliopolis, Phoenicia. Barbara was the daughter to a rich pagan named ... continue reading

77.

Image of St. Brigid of Ireland

St. Brigid of Ireland

Saint Brigid was born Brigit, and shares a name with a Celtic goddess from whom many legends and folk customs are associated. There is much debate over her birthparents, but it is widely ... continue reading

All Popular Saints

Saint of the Day

Image of Sts. Andrew Kim Taegon, Paul Chong Hasang, and Companions

Sts. Andrew Kim Taegon, Paul Chong Hasang, and Companions

Feastday: September 20 The evangelization of Korea began during the 17th century through a group of lay persons. A strong vital Christian community flourished there under lay leadership until ... continue reading

More Saint of the Day
September 2017
S M T W T F S
12
3456789
10111213141516
17181920212223
24252627282930

Saint of the Day by E-Mail

Saint of the Day newsletter icon

Learn about the lives of the saints and other saint resources, including a calendar, over 5,000 saint biographies, our most popular saints, and a list of patron saints. 7 days / week. See Sample


Required


Female Saints

Image of St. Elizabeth of Hungary

St. Elizabeth of Hungary

St. Elizabeth of Hungary, also known as St. Elizabeth of Thuringia, was born in Hungary on July 7, 1207 to the Hungarian King Andrew II and Gertrude of Merania. As soon as her life began, she had responsibilities from being a royal pressed upon her. While Elizabeth ... continue reading

More Female Saints



Saint Calendar
Saint Feast Days
Saint Fun Facts

Angels

Image of St. Michael the Archangel

St. Michael the Archangel

Saint Michael the Archangel isn't a saint, but rather he is an angel, and the leader of all angels and of the army of God. This is what the title "Archangel" means, that he is above all the others in rank. St. Michael has four main responsibilities or offices, as we ... continue reading


Image of St. Gabriel, the Archangel

St. Gabriel, the Archangel

St. Gabriel is an angel who serves as a messenger for God to certain people. He is one of the three archangels. Gabriel is mentioned in both the Old and the New Testaments of the Bible. First, in the Old Testament, Gabriel appears to the prophet Daniel to explain his ... continue reading



Saints Fun Facts

Saints Fun Facts for St. Bonaventure

St. Bonaventure

St. Bonaventure, Bishop and Doctor of the Church (Feast day-July 15) St. Bonaventure, known as "the seraphic doctor," was born at Bagnoregio, in the Lazio region of central Italy, in 1221. He received the name of Bonaventure in consequence of an exclamation of St. ... continue reading

Saints Fun Facts for St. Boniface

St. Boniface

Winfrith had expected to return to England from Friesland (in what is now Holland) in triumph. He had left the land where he was a respected scholar, teacher, and priest because he was convinced he was called to missionary work. He had argued and pestered his abbot ... continue reading



Christian Saints & Heroes

Image of

The Assumption of Mary

By Deacon Frederick Bartels

Why is the Assumption important? First, lets look at what this dogma is all about. On 1 November, 1950, Pope Pius XII issued the Apostolic Constitution Munificentissimus Deus in which he proclaimed the dogma of the Assumption: "Mary, the immaculate perpetually Virgin ... continue reading

More Christian Saints & Heroes

Never Miss any Updates!

Stay up to date with the latest news, information, and special offers.

Catholic Online Logo

Copyright 2017 Catholic Online. All materials contained on this site, whether written, audible or visual are the exclusive property of Catholic Online and are protected under U.S. and International copyright laws, © Copyright 2017 Catholic Online. Any unauthorized use, without prior written consent of Catholic Online is strictly forbidden and prohibited.