Isaiah 20:2-4

2during that time the Lord had spoken through Isaiah son of Amoz, saying, “Go, take off your sackcloth from your waist and remove the sandals from your feet,” and he did that, going stripped and barefoot  —

3the Lord said, “As my servant Isaiah has gone stripped and barefoot three years as a sign and omen against Egypt and Cush,

4so the king of Assyria will lead the captives of Egypt and the exiles of Cush, young and old alike, stripped and barefoot, with bared buttocks — to Egypt’s shame.