Light of life, seraphic Fire. C Wesley. [Holiness desired.] Appeared in Hymns and Sacred Poems, 1749, vol. ii., in 3 stanzas of 8 lines, as No. 18 of "Hymns for those that wait for full Redemption" (Poetical Works, 1868-72, vol. v. p. 309). In 1780 it was given in the Wesleyan Hymn Book, No. 387, with the omission of stanza iii. This form of the hymn has come into extensive use in Great Britain and America. It also sometimes appears as "Light of life, celestial Fire," as in Kennedy, 1863.
--John Julian, Dictionary of Hymnology (1907)