The festal morn, my [O] God is come. J. Merrick. [Ps. cxxii. Sunday Morning.] Published in his Poems, 1763; and again in his Psalms Translated or Paraphrased in English Verse, 1765, p. 327, in 7 stanzas of 6 lines. It was given in several of the older, and is still retained in a few modern collections, but usually in an abbreviated and slightly altered form, as in Hatfield's Church Hymn Book, N. Y., 1872; E. Prout's Psalmist, 1878, and others. In the American Prayer Book Collection, 1826, stanzas i.-v. were given as "With joy shall I behold the day." This form is repeated in several American collections, including The Church Hymnal, Philadelphia, 1869; and in 4 stanzas in the Protestant Episcopal Church Hymnal, 1871.
-- John Julian, Dictionary of Hymnology (1907)