A great source for songs of faith is Hymnsys. This product contains over 700 hyms and displays the words while playing the music. You may select to hear the parts either alone or in any combination. This feature was invaluable to me when I first joined the church choir and had no idea how to sing (in my case) the tenor line. The songs are indexed by Title, First Line, Topic, Word (search), Author/Composer, and Tune. A click of the mouse takes you to the scripture from which the hymn was taken and also to biographies of the author and composer. Altogether, a very useful program for anyone invloved in church music.
For more info: www.hymnsys.com/hymnsys.htm

Enjoy!

DWDitty