The theological endeavours of the Church will be based on the best and surest foundations if those who take part in them feed their minds constantly at the liturgy. The doctrines of the Church will bear on reality if they are never divorced from her worshipping life.
Conversely, however, the form and expression of the liturgy itself, at any given time, must be subject to the criticism of theology. If theology takes its beginning from faithful waiting upon God in word and sacrament, the rites by which we celebrate the liturgy need constantly to be re-aligned to their purpose and end by the discipline of theology grounded in revelation.
—William Nicholls, Jacob’s Ladder: The Meaning of Worship, 10