O God of Truth, O Lord of Might by St. Ambrose, 340-397 VETTER—Daniel Vetter NUNC SANCTE—Early plainsong, Mode VIII O God of Truth, O Lord of Might 1 O God of truth, O Lord of might, Who orderest time and change aright, And send’st the early morning ray, And light’st the glow of perfect day: 2 Extinguish Thou each sinful fire, And banish every ill desire; And while Thou keep’st the body whole. Shed forth Thy peace upon the soul. 3 O Father, that we ask be done, Through Jesus Christ,