About a month ago, I was thinking about a song that I think I learned in Sunday school. I don't know if I ever learned the title, but a few years ago, Roger McGuinn recorded a version of it for his Folk Den and called it "Joy, Joy, Joy, Joy Down in My Heart." I remember only one verse, but one that McGuinn has contains the phrase "a peace that passes understanding," which comes from Philippians 4:7: "And the peace of God, which surpasses all understanding, will guard your hearts and your minds in Christ Jesus."
From what I remember, the melody is something like:
The words are:
I've got a joy, joy, joy, joy, down in my heartDown in my heart, down in my heartI've got a joy, joy, joy, joy, down in my heartDown in my heart today.
(Apparently, some versions have "the joy" instead of "a joy.")
The melody is composed almost entirely of descending phrases, and this gives something of a sense of the "down" in the repeated phrase "down in my heart."
