As an example of this he cites "When I Survey the Wondrous Cross".

He wrote about 600 hymns including When I Survey the Wondrous Cross, Am I a Soldier of the Cross, and Joy to the World.

"When I Survey the Wondrous Cross" G. Glaysher & Chris Hudson (Piano)

William Barclay relates the parable to the last verse of the Isaac Watts hymn "When I Survey the Wondrous Cross":

Hymns and Spiritual Songs by Isaac Watts (including "When I Survey the Wondrous Cross")

The idea for Looking Into Light came from Hogg's father who was struck by the "When I Survey the Wondrous Cross" recording by Iona.

The tune is often used for the hymn "When I Survey the Wondrous Cross" by Isaac Watts.

"When I Survey The Wondrous Cross"

"When I Survey the Wondrous Cross"

Wondrous Cross (2011)