The lyrics for this hymn were written as a processional hymn for children walking from Horbury Bridge, where Baring-Gould was curate, to Horbury St Peter's Church near Wakefield, Yorkshire, at Whitsuntide in 1865. It was originally entitled, "Hymn for Procession with Cross and Banners." According to the Centre for Church Music, Baring-Gould reportedly wrote "Onward, Christian Soldiers" in about 15 minutes, later apologising, "It was written in great haste, and I am afraid that some of the lines are faulty." He later allowed hymn-book compilers to alter the lyrics. For example, The Fellowship Hymn Book, with his permission, changed the phrase "one in hope and doctrine" to "one in hope and purpose." For the 1909 edition of Hymns Ancient and Modern, he changed the fifth line of the same verse from "We are not divided" to "Though divisions harass." However, Baring-Gould’s original words are used in most modern hymnals. I don't know the arranger of this piano version that I'm playing, but it is one of my favorites. I hope you enjoy it.