The is a bit of an orphan setting of Psalm 26 (27) by Marty Haugen. You would expect Haugen’s work to be available but he wrote a more useable setting later on and that appears to have superceded this one.
The text is a paraphrase of the Psalm and the editors of CWB have changed it as well, so it would be only be useful as a hymn rather than as a psalm, which is probably why it has disappeared.
That said, I made a backing with made up chords for anyone who has CWB and wants to know how it goes. I haven’t found it available anywhere else.