I heard this tune done at the Fiddler's Grove festival this summer. It was done in a bit of a slow bluegrass style, but might originally be a country ballad number or such.
The theme was of a young boy overhearing two men arguing the existence of God, and begging not to tell his father that Jesus didn't exist. The chorus was something like:
"Please don't tell my Daddy Jesus isn't real,
I don't want him to be the way he was before
'Cause since my dad found Jesus, he don't stay out late or drink
And he doesn't hurt my mommy anymore."
It was a rather interesting song. The chords were basic I-IV-V, but does anyone know where I might find the lyrics?