Skip to content
Catholic Online Logo

Short Cuts

Image of St. Irenaeus


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.

More about St. Irenaeus from Wikipedia

St. Irenaeus Comments

More Saints

Browse Saints by Category

Popular Saints




Image of Sts. Perpetua and Felicity

Sts. Perpetua and Felicity

With the lives of so many early martyrs shrouded in legend, we are fortunate to have the record of the courage of Perpetua and Felicity from the hand of Perpetua herself, her teacher ... continue reading


Image of St. Martin of Tours

St. Martin of Tours

When Sulpicius Severus first met Martin of Tours he was stunned. Not only did the bishop offer him hospitality at his residence -- a monk's cell in the wilderness instead of a palace -- but ... continue reading


Image of St. John of God

St. John of God

From the time he was eight to the day he died, John followed every impulse of his heart. The challenge for him was to rush to follow the promptings of the Holy Spirit gave him, not his own ... continue reading

All Popular Saints

Saint of the Day

Image of St. Saturninus

St. Saturninus

St. Saturninus Bishop of Toulouse and Martyr November 29 A.D. 257     St. Saturninus went from Rome by the direction of pope Fabian, about the year 245, to preach the faith in Gaul, ... continue reading

More Saint of the Day
November 2015

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


Female Saints

Image of St. Helena

St. Helena

Empress mother of Constantine the Great. She was a native of Bithynia, who married the then Roman general Constantius I Chlorus about 270. Constantine was born soon after, and in 293, Constantius was made Caesar, or junior emperor. He divorced Helena to marry co ... continue reading

More Female Saints

Saint Calendar
Saint Feast Days
Saint Fun Facts


Image of St. Michael the Archangel

St. Michael the Archangel

St. Michael the Archangel - Feast day - September 29th The name Michael signifies "Who is like to God?" and was the warcry of the good angels in the battle fought in heaven against satan and his followers. Holy Scripture describes St. Michael as "one of the chief ... continue reading

Image of St. Gabriel, the Archangel

St. Gabriel, the Archangel

The name Gabriel means "man of God," or "God has shown himself mighty." It appears first in the prophesies of Daniel in the Old Testament. The angel announced to Daniel the prophecy of the seventy weeks. His name also occurs in the apocryphal book of Henoch. He was the ... continue reading

Saints Fun Facts

Saints Fun Facts for St. Christopher

St. Christopher

Saint Christopher is one of the most popular, yet most enigmatic Catholic figures. He is considered a saint, although he is not in the official canon of the saints. He is listed as a martyr, possibly named Reprobus, who died under the Roman Emperor Decius, in 251 AD. ... continue reading

Saints Fun Facts for St. Jude Thaddaeus

St. Jude Thaddaeus

St. Jude, known as Thaddaeus, was a brother of St. James the Less, and a relative of Our Saviour. He was one of the 12 Apostles of Jesus and his attribute is a club. Images of St. Jude often include a flame around his head, which represent his presence at Pentecost, ... continue reading

Christian Saints & Heroes

Image of St. Therese of Lisieux

Jennifer Hartline: Trying to Learn Humility From St. Therese

By Jennifer Hartline

St. Therese helps me understand: "the splendor of the rose and the whiteness of the lily do not take away the perfume of the little violet or the delightful simplicity of the daisy.if all flowers wanted to be roses, nature would lose her springtime beauty, and the ... continue reading

More Christian Saints & Heroes


Newsletter Sign Up icon

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

Subscribe to Catholic OnlineYouTube Channel

the FEED
by Catholic Online

  • Prayer For Courage HD Video
  • BIGGER THAN ISIS - There's a hidden power behind ISIS and it's so big ...
  • The Miracle Prayer HD Video
  • Who Needs Advent? I do!
  • Daily Readings for Monday, November 30, 2015
  • President likens Syrian refugees to pilgrims on Mayflower in ...
  • St. Andrew: Saint of the Day for Monday, November 30, 2015

Daily Readings

Reading 1, Jeremiah 33:14-16
14 "Look, the days are coming, Yahweh declares, when I shall fulfil the ... Read More

Psalm, Psalms 25:4-5, 8-9, 10, 14
4 DIRECT me in your ways, Yahweh, and teach me your paths.5 ... Read More

Gospel, Luke 21:25-28, 34-36
25 'There will be signs in the sun and moon and stars; on earth nations ... Read More

Reading 2, First Thessalonians 3:12--4:2
12 May the Lord increase and enrich your love for each other and for all, ... Read More

Saint of the Day

Saint of the Day for November 29th, 2015 Image

St. Saturninus
November 29: St. Saturninus Bishop of Toulouse and Martyr ... Read More