'Needy' in the Bible

They have grown fat. They shine; yes, they excell in deeds of wickedness. They don't plead the cause, the cause of the fatherless, that they may prosper; and they don't judge the right of the needy.

Sing to Yahweh, praise Yahweh; for he has delivered the soul of the needy from the hand of evildoers.

He judged the cause of the poor and needy; then it was well. Wasn't this to know me? says Yahweh.