'Fetters' in the Bible

for many a time he had been left securely bound in fetters and chains, but afterwards the chains lay torn link from link, and the fetters in fragments, and there was no one strong enough to master him.

For already He had been commanding the foul spirit to come out of the man. For many a time it had seized and held him, and they had repeatedly put him in chains and fetters and kept guard over him, but he used to break the chains to pieces, and, impelled by the demon, to escape into the Desert.