 In 1977, he returned to Cambridge to teach theology as a tutor (as well as chaplain and Director of Studies) at Westcott House; he was made a deacon in the chapel by Eric Wall, Bishop of Huntingdon, at Michaelmas (2 October).While there, he was ordained a priest the Petertide following (2 July 1978), by Peter Walker, Bishop of Ely, at Ely Cathedral.Williams did not have a formal curacy until 1980, when he served at St George's, Chesterton, until 1983, after having been appointed a university lecturer in divinity at Cambridge.