I listened to several of these, and they are really beautiful, as Scripture songs go:

Abigail Miller Music – Bible Verses Put To Music

The style is not what some would consider “pure” Scripture songs, because it seems that many of them contain some additional lines along with the words of the Bible. However, they do seem to be based, for the most part, on the KJV. The style is very conservative (no drums). There is almost 100 songs listed, along with lyrics and soundtracks for free download as well. 

You can also git yer free Country-Western style (with a li’l bluegrass — but mostly without drums) Scripture songs here.