Coggan's concern "with Scripture translations, exegesis and preaching dominated his mind" His "interest in Biblical translation persisted in his ministry – he was actively involved in the preparation of new, clear and usable translations of biblical texts, including the New English Bible (1961) and the Revised English Bible (published in 1989)". He was chairman of the Joint Committee responsible for the translation of the New English Bible (1970). and chairman of the Joint Committee responsible for the translation of the Revised English Bible (1989).