O speak that gracious word again. J. Newton. [Peace.] This is No. 53 of Book iii. in the Olney Hymns, 1779, in 7 stanzas of 4 lines, and is headed “Peace restored." In its full or in an abridged form it is found in a few modern hymnals. In the American Methodist Episcopal Hymns, 1849, No. 882, it is changed from C. M. to S. M., and reads, "O speak that word again;" but this form of the hymn has not met with favour.
--John Julian, Dictionary of Hymnology (1907)