'Righteousness' in the Bible

True teaching was in his mouth, and no evil was seen on his lips: he was walking with me in peace and righteousness, turning numbers of people away from evil-doing.

And he shall sit as a refiner and purifier of silver: and he shall purify the sons of Levi, and purge them as gold and silver, that they may offer unto the LORD an offering in righteousness.

But unto you that fear my name shall the Sun of righteousness arise with healing in his wings; and ye shall go forth, and grow up as calves of the stall.