I’ve blogged the version from AOV 2 Guitar edition here, under its other title “How Rich Are the Depths of God”.
Since that version has more basic chords I’ve done a different backing using the full accompaniment so you may compare my backings seven years apart.
The text is based on Psalm 139 but using the title “The Hound of Heaven” suggests we look at the famous poem of that name. The poem starts “I fled him”, which relates to Psalm 139:7 “Where could I go to escape from you?”, although the specific verses aren’t in the text Willcock uses from the Grail.