'Needy' in the Bible

They are waxed fat, they shine: yea, they overpass in deeds of wickedness; they plead not the cause, the cause of the fatherless, that they may prosper; and the right of the needy do they not judge.

Sing unto Jehovah, praise ye Jehovah; for he hath delivered the soul of the needy from the hand of evil-doers.

He judged the cause of the poor and needy; then it was well. Was not this to know me? saith Jehovah.