sentences:  The UECNA considers the Affirmation of St. Louis to be one of its founding documents but considers it to be a supplement to, rather than a replacement for, older statements such as the Articles of Religion, the Homilies, and the Book of Common Prayer.The UECNA accepts the Affirmation of St. Louis as a response to the theological and moral crisis in The Episcopal Church and the Anglican Church of Canada in the early 1970s, and as a call to action on the part of orthodox Episcopalians to preserve the traditional teaching and worship of the Church.In ceremonial matters, the present Presiding Bishop, Peter D. Robinson, points outs that the UECNA has a greater diversity of churchmanship and ceremonial practice than it did in the 1980s.