because he had often been bound with shackles and chains. And the chains had been pulled apart by him, and the shackles broken in pieces; neither could anyone tame him.
Mark 5:4
Surrounding context
5:3 who had his dwelling among the tombs; and no one could bind him, not even with chains,
5:4 because he had often been bound with shackles and chains. And the chains had been pulled apart by him, and the shackles broken in pieces; neither could anyone tame him.
5:5 And always, night and day, he was in the mountains and in the tombs, crying out and cutting himself with stones.