'Righteous' in the Bible

And what nation is there so great, that hath statutes and judgments so righteous as all this law, which I set before you this day?

Thou shalt not wrest judgment; thou shalt not respect persons, neither take a gift: for a gift doth blind the eyes of the wise, and pervert the words of the righteous.

If there be a controversy between men, and they come unto judgment, that the judges may judge them; then they shall justify the righteous, and condemn the wicked.