Hello. I think the songs in question are "I Got Religion, I'm So Glad" and "I'm A Soldier In The Army Of The Lord" from the out-of-print cassette put out by Stefan Grossman's Guitar Workshop in 1984.

As far as I know this material has not been made available in any other format.

Now a plug for my website, in case you didn't already know about it www.reverendgarydavis.com (a work in progress)