'Oppression' in the Bible

So I again considered all the oppression that continually occurs on earth. This is what I saw: The oppressed were in tears, but no one was comforting them; no one delivers them from the power of their oppressors.

Surely oppression can turn a wise person into a fool; likewise, a bribe corrupts the heart.

For there is a proper time and procedure for every matter, for the oppression of the king is severe upon his victim.