'Prison house' in the Bible

And the Philistines seize him, and pick out his eyes, and bring him down to Gaza, and bind him with two brazen fetters; and he is grinding in the prison-house.

And it cometh to pass, when their heart is glad, that they say, 'Call for Samson, and he doth play before us;' and they call for Samson out of the prison-house, and he playeth before them, and they cause him to stand between the pillars.