'Needy' in the Bible

Thus saith Jehovah: For three transgressions of Israel, yea, for four, I will not turn away the punishment thereof; because they have sold the righteous for silver, and the needy for a pair of shoes-

Hear this word, ye kine of Bashan, that are in the mountain of Samaria, that oppress the poor, that crush the needy, that say unto their lords, Bring, and let us drink.

For I know how manifold are your transgressions, and how mighty are your sins-ye that afflict the just, that take a bribe, and that turn aside the needy in the gate from their right .

Hear this, O ye that would swallow up the needy, and cause the poor of the land to fail,

that we may buy the poor for silver, and the needy for a pair of shoes, and sell the refuse of the wheat?