Begin, my tongue, some heav'nly theme And speak some boundless thing The mighty works, or mightier name Of our eternal King ♪ Tell of His wondrous faithfulness And sound His pow'r abroad Sing the sweet promise of His grace And our redeeming God ♪ His very word of grace is strong As that which built the skies The voice that rolls the stars along Speaks all the promises ♪ O might I hear Thy heav'nly tongue But whisper, "Thou art Mine" Those gentle words should raise my song To notes almost divine