Now the Laborer's Task Is O'er

'[...] Now you can go back to her and live happily ever after. It will be a genuine pleasure to me to weigh in with the silver egg-boiler or whatever you may suggest as a wedding gift, and during the ceremony you can rely on me to be in a ringside pew, singing "Now the labourer's task is o'er" like nobody's business.'

The Mating Season. Chapter 24

If he had sung, the melody he would have selected would probably have been 'Now the Labourer's Task is O'er'.

Pearls, Girls and Monty Bodkin. Chapter 10.I