And it shall come to pass in that day, that the prophets shall be confounded, every one by his own vision, when he shall prophesy, neither shall they be clad with a garment of sackcloth, to deceive:
And he shall go before him in the spirit and power of Elias; that he may turn the hearts of the fathers unto the children, and the incredulous to the wisdom of the just, to prepare unto the Lord a perfect people.
At that same time, the Lord spoke by the hand of Isaias the son of Amos, saying: Go, and loose the sackcloth from off thy loins, and take off thy shoes from thy feet. And he did so, and went naked and barefoot.