No. 63 in The Extended 120 Hymns for Brass Band (Red Hymn Book).

The tune NICAEA is named after the Council of Nicaea (A.D. 325) at which church leaders began to formulate the doctrine of the Trinity to oppose the heresies of Arius. Dykes wrote NICAEA as a setting for Reginald's text, and ever since their first publication together in Hymns Ancient and Modern (1861), the text and tune have been virtually inseparable.