Turns out St. Patrick is not a Catholic saint. And the Church he founded was basically a fifth century Mars Hill Bible Church. Somehow the Irish got the impression they should say Mass and celebrate the sacraments. An especially dim-witted people. In fact, all early Christians were dimwitted in exactly the same way, since they all were given simple Bible-based Evangelical churches and yet they *all* immediately started celebrating Masses and Divine liturgies that look nothing like Evangelical Bible-based church services and extremely like Catholic liturgies. How all early Christians managed to make the same mistake has not yet been explained. Research proceeds and success is expected hourly.
Mark Driscoll Teaches Church History