Saint Patrick, The Shamrock, and The Trinity

March 16, 2011

The Pastor's Page

St. Patrick at St. Nicholas in Belle River

The shamrock is a symbol both for the Holy Trinity and St. Patrick (389-461). The shamrock is a clover plant with a yellow flower and leaflets made up of a stem with three small green leaves. The plant is very common and widely distributed throughout Ireland.

St. Patrick was a zealous missionary to the Irish, a people who upon his arrival in 432 had heard little or nothing of Jesus and his gospel. St. Patrick was an energetic traveler, a determined evangelizer, and a courageous preacher, and as he canvassed the countryside he was assailed by bitter opponents who threatened his life and undermined his message, but undeterred, he made hundreds and thousands of converts.

Whether St. Patrick was speaking to local pagans who knew nothing of the Christian faith, or to neophytes, newly-baptized disciples who were not well-grounded in the truths of the faith, he was faced with the daunting task of explaining profound mysteries such as the Trinity which are so difficult to understand.

There are several popular legends about how St. Patrick used the shamrock to explain the mystery of the Trinity. According to one story, St. Patrick went to Connaught where he met two of King Laoghaire’s daughters, Ethne and Fedelm. St. Patrick had been unable to persuade the king to convert, but he convinced the king’s daughters. During their time of instruction St. Patrick used a shamrock to visualize the mystery of the Trinity, how a single plant with three leaves is analogous to the one Triune God with three separate and distinct Persons (Thurston, H. J., ed., Butler’s Lives of the Saints, Vol. 1, 615).

According to another legend, St. Patrick used a shamrock to help explain the Trinity in a sermon he preached directly to King Laoghaire.

According to a third legend, St. Patrick was traveling and happened upon a number of Irish chieftains along a meadow. The tribal leaders were curious about the Trinity and asked St. Patrick for an explanation. So he bent down, picked a shamrock, and showed it to them, and explained how the three leaves are part of the one plant, and how similarly the three Persons, Father, Son, and Spirit, are part of one Supreme Being.

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About Father Michael Van Sloun

Father Michael A. Van Sloun is the pastor of Saint Bartholomew of Wayzata, MN. Ministerial interests include weekly Bible study, articles on theological topics, religious photography, retreats on Cross spirituality, and pilgrimages to the Holy Land, Italy, Greece and Turkey.

View all posts by Father Michael Van Sloun
  • Statueswoeyes

    Great explanation of the origins of St. Patrick. This blog is a must read for St. Patrick’s day and it’s brevity and clarity make it easily read.

  • kittenfuud

    I didn’t know this about St. Patrick. All I’ve ever heard is that he supposedly drove all the snakes out of Ireland! But I’m a Scots Protestant, so I wouldn’t have learned this in Sunday School! Thanks for the explanation of who he REALLY was, and the simple yet profound way he explained the Holy Trinity. I will teach my children this today!

  • In my opinion article is written well. The girl, now a sister in Christ (not obsessively) made ??the right choice. I would like to wish her ??well as other Christians that we are more looking for the glory of God and not human (not to offend).

  • The Trinity was not hard concept to grasp for Irish Pagans, as the Irish pantheon had numerous triple-deities. Two of the more important ones being Morrigan and Brighid. As such, the Patrick/Shamrock story is just a story…

  • hi

    this does not help

  • tplarkin7

    The worldwide popularity of St. Patrick’s Day and the shamrock prove that the 3-leaf clover truly represents the Trinity. (Is there anything else that matters?) The 4-leaf clover is considered lucky, and represents Mary, the Mother of God. The luck is prosperity given to us by God through Mary.