This dissertation is a consideration of the re-ritualization of Christian formation during the sixteenth century. It examines the reformers' alterations to ritual aspects of Christian formation in the areas of catechesis, liturgical participation, and private prayer in the traditions of the Lutheran churches, the Church of England, and the Roman Catholic Church.It utilizes the Lord's Prayer, the ritual key to the Church's formation of laypeople for participation in the worship life of the Church, as a lens by which the sixteenth-century reforms of the medieval ritual system can be outlined and examined.