The Reverend Gary version that I have has as much innuendo as any song I've ever heard. It's 11 minutes long, so I don't remember all of the verses, but some are:

I ain't no wine presser, no wine pressers son,
but I can press out a little juice, before your wine presser comes,
Can I get you now, or do I have to hesitate?

I ain't no chauffeur, no chauffer' son,
but I can do a little driving, before your chauffeur comes,
Can I get you now...

I ain't no backbreaker, no backbrekers son,
but I can stretch out your back a little bit, before your backbreaker comes.
Can I get now...

Ah, all this from a man of the cloth.

Another great innuendo song is Mississippi John Hurt's Candy Man