Thanks, Joe.

Bob was also artist-in-residence at St Andrew's Episcopal Church in Marblehead for many, many years and wrote quite a lot of Christian music for them, including an Easter Cantata.

Quite a few of his songs are more or less overtly Christian, including:
Walkin' In The Wilderness
Israelite
Waiting For Nineveh To Burn
Turn Back, O Man
Holy Ground
For Real
Straw Against The Chill
A Healing in this Night
Source
A Still Small Voice
Hard Love
Beggars to God