'Righteous' in the Bible

and Jehovah hath turned back his blood on his own head, who hath fallen on two men more righteous and better than he, and slayeth them with the sword, -- and my father David knew not -- Abner son of Ner, head of the host of Israel, and Amasa son of Jether, head of the host of Judah;

then Thou dost hear in the heavens, and hast done, and hast judged Thy servants, to declare wicked the wicked, to put his way on his head, and to declare righteous the righteous, to give him according to his righteousness.