'Slave' in the Bible

Both small and great are there,and the slave is set free from his master.

Like a slave he longs for shade;like a hired man he waits for his pay.

“He loosens the bond of kingsAnd binds their loins with a loincloth.

The sojourners in my house and my slave women count me as a stranger; I have become a foreigner in their eyes.

Will he make a covenant with youso that you can take him as a slave forever?