The Book of Isaiah is accepted as canonical by all major Christian traditions and Judaism. It is traditionally placed first among the Major Prophets due to its length and depth of messianic prophecy.
Isaiah
Chapter 20
In the year that Tartan came to Ashdod, when Sargon the king of Assyria sent him, and he fought against Ashdod and took it;
at that time Yahweh spoke by Isaiah the son of Amoz, saying, "Go, and loosen the sackcloth from off your waist, and take your sandals from off your feet." He did so, walking naked and barefoot.
Yahweh said, "As my servant Isaiah has walked naked and barefoot three years for a sign and a wonder concerning Egypt and concerning Cush,
so the king of Assyria will lead away the captives of Egypt and the exiles of Cush, young and old, naked and barefoot, and with buttocks uncovered, to the shame of Egypt.
They will be dismayed and confounded, because of Cush their expectation, and because of Egypt their glory.
The inhabitants of this coast land will say in that day, 'Behold, this is our expectation, where we fled for help to be delivered from the king of Assyria. And we, how will we escape?'"