I don't know the original, but maybe this would help?

His head it is below him, his feet stuck in the door
For him there is no other, so upward he must go
To the porcelain pot, salvation is just what he has sought
But when he dipped his head in, it weren't the Father's font!

Oh, we dipped him once, we dipped him twice
His sins he was repentin'
They all came spewing from him
In the porcelain cold as ice.

Ah, well, maybe not the last bit.