Isaiah 20
2 Ref At that time the word of the Lord came to Isaiah, the son of Amoz, saying, Go, and take off your robe, and your shoes from your feet; and he did so, walking unclothed and without shoes on his feet.
3 Ref And the Lord said, As my servant Isaiah has gone unclothed and without shoes for three years as a sign and a wonder to Egypt and Ethiopia,