Isaiah 28:12

To whom he said, This is the rest... — The prophet vindicates himself against the charge of being a repeater of wearisome messages of rebuke. Rather had he pointed the way to a time of repentance, and therefore of rest and refreshment. But to this also they closed their ears. They had but one formula of derision, whatever might be the subject of the prophet’s teaching; and the prophet, with all the scorn of irony, repeats that formula in the words that follow.