23Adomnán. “Saint Erc's Well, Slane.” Ireland's Holy Wells, irelandsholywells.blogspot.com/2012/02/saint-ercs-well-slane.html.
The story of St. Patrick and St. Erc is from the 7th century Life of St. Patrick, by Muirchú moccu Machtheni.
The author includes this prayer to St. Erc: "O God who granted the blessed Saint Erc a deep understanding of justice and a wise councel, grant us who benefit from his faithfulness a sound judgement in all things, a stillness of body, mind and soul and a faithfulness of heart that in all things we may honour your name and proclaim your glory; through Jesus Christ our Lord who lives and reigns with you and the Holy Spirit, now and for ever.