'Righteous' in the Bible

He guards the steps of his faithful ones, while the wicked are made silent in darkness. He grants the request of the one who prays. He blesses the year of the righteous. Indeed it's not by strength that a person prevails.

Now therefore stand still, that I may reason with you before the LORD of all the righteous acts of the LORD, which he did to you and to your fathers.

Also, as for me, far be it from me {that I should sin} against Yahweh by ceasing to pray for you! I will instruct you in the good and righteous way.

And he said to David, Thou art more righteous than I: for thou hast rewarded me good, whereas I have rewarded thee evil.