'Free' in the Bible

“The small and the great are there,And the servant is free from his master.

“I am disgusted with my life and loathe it!I will give free expression to my complaint;I will speak in the bitterness of my soul.

“Shall a multitude of words not be answered?And should a talkative man [making such a long-winded defense] be acquitted?

“But a hollow (empty-headed) man will become intelligent and wise[Only] when the colt of a wild donkey is born as a man.