'Slave' in the Bible

“You have not brought Me your sheep or goats for your burnt offerings,Nor honored Me with your sacrifices.I have not burdened you with offerings,Nor wearied you with [demands for offerings of] incense.

“Take millstones [as a female slave does] and grind meal;Remove your veil, strip off the skirt,Uncover the leg, cross the rivers [at the command of your captors].