What you've got there is probably a blending of 2, maybe 3 old songs. Part of it comes from "The Pig and the Inebriate", of which we have four versions in the DT: PIG AND THE INEBRIATE, PIG AND THE INEBRIATE 2 (long version), PIG AND THE INEBRIATE 3, and (which seems to be the original) THE FAMOUS PIG SONG.

(I'm sure there are discussion threads about this song, but with the Forum search function not working, I haven't bothered to try to find them.)

This leads me to suspect there is an older version of "Power of Good" too.