These curious lines are from epitaphs on gravestones in Cheltenham, to which a chorus has been added. It is clearly a local composition.
The second epitaph reads:
To the memory of John Higgs, died 1825. Here lies John Higgs A famous man for killing pigs For killing pigs was his delight Both morning, afternoon and night. Both heats and colds he did endure Which no physician could e’er cure His knife is laid, his work is done, I hope to heaven his soul is gone.