O! day of days! shall hearts set free? J. Keble. [Easter.] Written April 18, 1822, and first published in his Christian Year, 1827, as the poem for Easter Day. It is in 15 stanzas of 4 lines, and headed with the text from St. Luke xxiv. 5, 6. It has been repeated in all later editions of the Christian Year. As a whole it is not in common use, but stanzas ix., xi. and xii., slightly altered, are given as, "As even the lifeless stone was dear," in the Hymn Book for the Use of Wellington College, 1860, where it is appointed for the evening of the 4th Sunday after Easter.
--John Julian, Dictionary of Hymnology (1907)