Paulinus has a good post comparing two versions of the gospel song "Old time religion" (Cf. In Hoc Signo Vinces: Old Time Religion)
This reminded me that we have not had any Bluegrass Gospel (not to be confused with Southern Gospel) for quite a while so here is a fun rendition of "Set Your Fields on Fire" by the Saltgrass Band. There is a certain amount of joshing at the beginning - if you want to skip some of this, the song begins just after 1'35" - just be sure to catch the beginning.
My all-time favourite is still If you can't walk on water / Then you better get in the boat