'Righteous' in the Bible

You see that a man (believer) is justified by works and not by faith alone [that is, by acts of obedience a born-again believer reveals his faith].

In the same way, was Rahab the prostitute not justified by works too, when she received the [Hebrew] spies as guests and protected them, and sent them away [to escape] by a different route?

You have condemned and have put to death the righteous man; he offers you no resistance.

Therefore, confess your sins to one another [your false steps, your offenses], and pray for one another, that you may be healed and restored. The heartfelt and persistent prayer of a righteous man (believer) can accomplish much [when put into action and made effective by God—it is dynamic and can have tremendous power].