Great God of boundless mercy hear; Thou Ruler of this earthly sphere; in substance one, in Persons three, dread Trinity in Unity! Do Thou in love accept our lays of mingled penitence and praise; and set our hearts from error free, more fully to rejoice in Thee. Our reins and hearts in pity heal, and with Thy chastening fires anneal; gird Thou our loins, each passion quell, and every harmful lust expel. Now as our anthems, upward borne, awake the silence of the morn, enrich us with Thy gifts of grace, from heaven, Thy blissful dwelling place! Hear Thou our prayer, Almighty King; hear Thou our praises, while we sing, adoring with the heavenly host the Father, Son and Holy Ghost.