'Righteous' in the Bible

because the eyes of the Lord are on the righteousand His ears are open to their request.But the face of the Lord is againstthose who do what is evil.

For Christ also suffered for sins once for all,the righteous for the unrighteous,that He might bring you to God,after being put to death in the fleshly realmbut made alive in the spiritual realm.

And if a righteous person is saved with difficulty,what will become of the ungodly and the sinner?