Obvious: Isaiah 20
2 (NIV) at that time the LORD spoke through Isaiah son of Amoz. He said to him, ÒTake off the sackcloth from your body and the sandals from your feet.Ó And he did so, going around stripped and barefoot. 3 Then the LORD said, ÒJust as my servant Isaiah has gone stripped and barefoot for three years, as a sign and portent against Egypt and Cush, 4 so the king of Assyria will lead away stripped and barefoot the Egyptian captives and Cushite exiles, young and old, with buttocks baredto Egypt's shame. 5 Those who trusted in Cush and boasted in Egypt will be afraid and put to shame. 6 In that day the people who live on this coast will say, ÔSee what has happened to those we relied on, those we fled to for help and deliverance from the king of Assyria! How then can we escape?ÕÓ