Thy promise, Lord, is perfect peace. H. F. Lyte. [Ps. iii.] Published in his Spirit of the Psalms, 1834, in 4 stanzas of 4 lines. It is in common use in its full form, and also, altered as "Lord, how the troublers of my peace," in the American Baptist Service of Song, 1871.
--John Julian, Dictionary of Hymnology (1907)