I've got loads more where that came from. Tell me what you like, the Sacred Harp psalm singing or the Wee Free psalm singing, and I'll provide a lot more examples (some even better).
Here's an example of one of the tunes above [107 Russia] slowed down and used to sing part of Psalm 119 [I cannot in any way, shape, or form condone the use of musical accompaniment in church, though].