'Walking' 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.

But those who are waiting for the Lord will have new strength; they will get wings like eagles: running, they will not be tired, and walking, they will have no weariness.

Who among you has the fear of the Lord, giving ear to the voice of his servant who has been walking in the dark and has no light? Let him put his faith in the name of the Lord, looking to his God for support.