The Most Ancient Lives of Saint Patrick/The Life and Acts of St. Patrick/Chapter 134
An Angel foretelleth to Patrick of Saint Moccheus.
The blessed Patrick purposed to build a church in a place sufficiently fair and fitting, which is now called Ludha. But an angel appearing unto him, enjoined that he should desist therefrom, saying; "Soon shall a servant of the Lord arrive from Britain, named Moccheus, who for the sake of God deserting his country and his parents, shall come into Hibernia; and in this place shall he build and dwell, and finish his days in piety." Then the saint obeying the angel, turned unto the left side of the place, and there builded unto the God of Jacob a tabernacle which is yet known by the name of Saint Patrick. And Moccheus coming thither, erected an oratory and all places fitting, and lived there a life abundant in virtue; and often Saint Patrick was wont to visit him, and confer with him on things pertaining unto God. And on a certain day, while they were sitting together and communing of God, the angel appeared and proffered unto them an epistle; the which Saint Patrick reading, found to be an exhortation, nay, rather a command, unto him especially directed, that he should absolutely confer on Moccheus the place which he had builded, with all matters pertaining thereunto, and that he himself should fix his cathedral seat in Ardmachia. And Patrick willingly did as the angel, nay, rather as the Lord, had enjoined and thence retiring, he commended unto Moccheus twelve lepers, to whom he had ministered in Christ; and Moccheus assumed the care and the custody of all these matters.