2 examples of unsetting in sentences

"I mentioned to young Jarnock how puzzled I was that the trap had been set before the service, on the night that the butler was struck; for, if I understood him aright, his father had been in the habit of setting the trap late every night and unsetting it each morning before anyone entered the Chapel.

In one bright unclouded day Endless ages roll away; There, beneath the unsetting sun, Years of ceaseless pleasure run.

2 examples of  unsetting  in sentences