On the first anniversary of his conversion, which happened to be Pentecost Sunday in 1739, Charles Wesley penned this outstanding hymn. In fact, penning a hymn on his conversion anniversary was something he made a tradition for years afterward. The title is said to come from something Wesley heard his spiritual mentor say. Moravian missionary Peter Bohler was reported to have said "Had I a thousand tongues, I would praise Him with them all!"

1. https://reasonabletheology.org/hymn-story-o-for-a-thousand-tongues-to-sing/
2. https://www.umcdiscipleship.org/resources/history-of-hymns-o-for-a-thousand-tongues-to-sing
3. https://hymnstudiesblog.wordpress.com/2008/09/26/quoto-for-a-thousand-tongues-to-singquot/