- Copyright: public domain
Tune names and composer notes
- Latter-day Saints Psalmody, 1889 calls it 'Fidelity'; there is no composer information listed at this source (see the other bullets for more information)
- Note: the article takes this name since it is, so far, the earliest cited name for the tune.
- The Cyber Hymnal™ calls it 'My Jesus I Love Thee' but gives it as the tune for 'O Boundless Salvation'. This source names the composer "J. Ellis".
- The Worshiping Church, 1990 calls it 'Affection' but gives it as one of the tunes for 'My Jesus, I Love Thee'. This source says the tune is by "E. F. Miller, 19th C.".
- The Christian Life Hymnal, 2006 calls it 'Boundless Salvation', and gives it as the tune Booth's hymn of the same title ('incipit' 'O Boundless Salvation'). This source says "attr. J. Ellis, 19th c."
- How Firm a Foundation, attributed to Robert Keen (ca. 1787)
- O Boundless Salvation, by William Booth (1829–1912)
- My Jesus, I Love Thee, by William Ralph Featherston
- Metrically the tune is in the form 11 11 11 6 6 11, though it is described as "11 11 11 11 with repeats".