Night Psalm was inspired by Psalm 77, particularly verse 20:
Your way was through the sea,
your path, through the mighty waters;
yet your footprints were unseen.
The melody of the piece is based on a chant found in a late sixteenth century antiphoner from Augsberg Cathedral in Germany. It is not known why this book would have been made so late, given the liturgical politics involved.
Night Psalm is dedicated to Paul Kahn on the occasion of his becoming a deacon.