In Keith Marsden's song "Idlers and Skivers" (Knocking at the Door), found at this location in the Digital Tradition , the following lines form the first half of the last verse:

But you haven't done your duty when you've sung about the poor
If you never raise a hand to ease their plight
If you sing the chorus louder, it might ease your conscience more
But pious thoughts do not excuse you from the fight