'Righteous' in the Bible

And Jehovah shall requite the blood which he shed upon his own head, because he fell upon two men more righteous and better than he, and slew them with the sword, without my father David's knowledge: Abner the son of Ner, captain of the host of Israel, and Amasa the son of Jether, captain of the host of Judah.

then hear thou in the heavens, and do, and judge thy servants, condemning the wicked, to bring his way upon his own head; and justifying the righteous, giving him according to his righteousness.