Oh yes, and there is "The Preacher and the Slave"

It is in the DT; but the chorus is:

You will eat bye and bye
in that glorious land above the sky
Work all day, live on hay
You'll get pie in the sky when you die.

Just to pick nits, the DT has the penultimate line as "Work and Pray, live on hay". I like it both ways.

Murray