'Oppressed' in the Bible

Learn to do well; seek judgment, relieve the oppressed, judge the fatherless, plead for the widow.

And the people shall be oppressed, every one by another, and every one by his neighbour: the child shall behave himself proudly against the ancient, and the base against the honourable.

And he said, Thou shalt no more rejoice, O thou oppressed virgin, daughter of Zidon: arise, pass over to Chittim; there also shalt thou have no rest.

Like a crane or a swallow, so did I chatter: I did mourn as a dove: mine eyes fail with looking upward: O LORD, I am oppressed; undertake for me.

For thus saith the Lord GOD, My people went down aforetime into Egypt to sojourn there; and the Assyrian oppressed them without cause.

He was oppressed, and he was afflicted, yet he opened not his mouth: he is brought as a lamb to the slaughter, and as a sheep before her shearers is dumb, so he openeth not his mouth.

Is not this the fast that I have chosen? to loose the bands of wickedness, to undo the heavy burdens, and to let the oppressed go free, and that ye break every yoke?