'Chaining' in the Bible

So the Philistines took him and put out his eyes; then they took him down to Gaza, and, chaining him with bands of brass, put him to work crushing grain in the prison-house.

And they put the sons of Zedekiah to death before his eyes, and then they put out his eyes, and chaining him with iron bands, took him to Babylon.

And he put out Zedekiah's eyes; and the king of Babylon, chaining him in iron bands, took him to Babylon, and put him in prison till the day of his death.