'Unclothed' in the Bible

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.

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,

So will the king of Assyria take away the prisoners of Egypt and those forced out of Ethiopia, young and old, unclothed and without shoes, and with backs uncovered, to the shame of Egypt.

The shame of your unclothed condition will be seen by all: I will give punishment without mercy,

Is it not to give your bread to those in need, and to let the poor who have no resting-place come into your house? to put a robe on the unclothed one when you see him, and not to keep your eyes shut for fear of seeing his flesh?