From the history book
This hymn was first added into LDS hymnals in this current one. The hymn first appeared in print in 1862, but it could be much older. And no one knows its composer or author or even the translator! I have heard other verses to this hymn, and some to different versions (Angels from the Realms of Glory), so I liked learning that there is a fourth verse, which we don't have in our hymnal Not sure why, but so it is.