IsaiahChapter 20

In the year that the commander in chief came to Ashdod, sent by Sargon king of Assyria, he fought against Ashdod and captured it.[^1] [^1]: "Commander in chief" renders an Assyrian military title (Tartan), the second-in-command of the army.
At that time the LORD spoke through Isaiah son of Amoz: "Go, take off the sackcloth from your waist and remove the sandals from your feet." And he did so, going stripped and barefoot.
Then the LORD said, "Just as my servant Isaiah has gone stripped and barefoot for three years as a sign and a portent against Egypt and Cush,
so the king of Assyria will lead away the captives of Egypt and the exiles of Cush, young and old alike, stripped and barefoot, with buttocks bared—the shame of Egypt.
Then they will be dismayed and put to shame because of Cush, their hope, and Egypt, their boast.
And in that day the inhabitants of this coastland will say, "Look what has become of our hope, the one we fled to for help and rescue from the king of Assyria! How then can we escape?"