'Helpless' in the Bible

He sitteth in the lurking-places of the villages; In the secret places doth he murder the innocent; His eyes are privily set against the helpless.

He croucheth, he boweth down, And the helpless fall by his strong ones.

Thou hast seen it ; for thou beholdest mischief and spite, to requite it with thy hand: The helpless committeth himself unto thee; Thou hast been the helper of the fatherless.