'Righteous Man' in the Bible

He that receiveth a prophet in the name of a prophet, shall receive a prophet's reward; and he that receiveth a righteous man in the name of a righteous man, shall receive the reward of a righteous man.

Yet scarce will any man die for a righteous man. Peradventure for a good man durst a man die.

understanding this, how that the law is not given unto a righteous man, but unto the unrighteous and disobedient, to the ungodly and to sinners, to unholy and unclean, to murderers of fathers and murderers of mothers, to manslayers

Knowledge your faults one to another: and pray one for another, that ye may be healed. The prayer of a righteous man availeth much, if it be fervent.