Hail! Alpha and Omega, hail. J. Cennick. [Faith desired.] Published in his Sacred Hymns for the Children of God, &c, 1741, No. 82, in 5 stanzas of 4 lines, and entitled," A Prayer for Faith." In 1774 it was given in R. Conyers's Collection; No. 78, stanza 3 being omitted. This arrangement has generally been followed by later editors, as in the Moravian Hymn Book, 1849, and others. In Kennedy, 1863, it reads: "Great Alpha and Omega, hail” In the Moravian Hymn Book, 1886, it begins with stanza ii., “Hail, First and Last," &c.
--John Julian, Dictionary of Hymnology (1907)