Be Thou My Vision by Irish folk song (Tr. Mary Elizabeth Byrne, 1905) SLANE—Irish traditional Be Thou My Vision 1 Be Thou my Vision, O Lord of my heart; Naught be all else to me, save that Thou art Thou my best Thought, by day or by night, Waking or sleeping, Thy presence my light. 2 Be Thou my Wisdom, and Thou my true Word; I ever with Thee and Thou with me, Lord; Thou my great Father, I Thy true son; Thou in me dwelling, and I with Thee one. 3 Be Thou my battle Shield, Sword for the fight;