The sun had gone down.

The boys' labors were over.

Their duties for the day were over; their minds were at rest, and every thing was favorable for making a deep and permanent impression.
"A few days ago," says the teacher, when all was still, "I accidentally overheard some conversation between two of the boys of this school, and one of them swore." There was a pause.
"Perhaps you expect that I am now going to call the boy out and punish him.

Is that what I ought to do ?" There was no answer.
"I think a boy who uses bad language of any kind does what he knows is wrong.

He breaks God's commands.