We learned this at the Seaside Missions during summer holidays in the west of Scotland in the early 1950's.

Wide, wide as the ocean,high as the Heaven above,
Deep, deep as the deepest sea is my Saviour's love.
I'm oh so unworthy - still I'm a child of His care
For His word teaches me that His love reaches me everywhere!

The tune was attractive and the last line, with lovely runs, reached a rousing climax on the final word. I vaguely remember gestures to accompany the first two lines, but my abiding memory is of the sheer joy of making what seemed to be a very musical sound.
As far as I was concerned, the religious message was only ever secondary -- the Mission was simply where you went for a good sing! And we also sang The House upon the Rock, and Running Over.