I don't remember singing "Here Am I, Oh Lord Send Me" in my {African American} Baptist church. But the lines "If you can't pray like Peter/If you can't preach like Paul etc" are very familiar to me {though I can't seem to get the titles of the song or songs that they are in from the back of my brain to my fingertips.}

If you can not pray like Peter
If you can not preach like Paul
You can tell the love of Jesus
and how he di-ied for all
--

The word "all" is extended and flows into the next line whatever it is...