Thanks Q, I thought I'd seen it connected with Randolph.
In Australia in the 1950s we sang a song at Sunday School that might have some connection. The tune was loosely based on the one used for "There Ain't no Bugs on Me" or "Gang Bang Lulu"

I'm H A P P Y
I'm H A P P Y
I know I am I'm sure I am
I'm H A P P Y.

I'm L O V E D
I'm L O V E D
I know I am I'm sure I am
I'm L O V E D.

By J E S U S
By J E S U S
I know I am I'm sure I am
By J E S U S.

I seem to remember that we sometimes went on with I'm S A V E D in the same way too. There are bound to be parodies I imagine. Joy