'Grind' in the Bible

But the Philistines took him, and put out his eyes, and brought him down to Gaza, and bound him with fetters of brass; and he did grind in the prison house.

Then let my wife grind unto another, and let others bow down upon her.

What mean ye that ye beat my people to pieces, and grind the faces of the poor? saith the Lord GOD of hosts.

Take the millstones, and grind meal: uncover thy locks, make bare the leg, uncover the thigh, pass over the rivers.

They took the young men to grind, and the children fell under the wood.