'Righteous' in the Bible

These are the records of the generations of Noah. Noah was a righteous man, blameless in his time; Noah walked with God.

Then the Lord said to Noah, “Enter the ark, you and all your household, for you alone I have seen to be righteous before Me in this time.

Abraham came near and said, “Will You indeed sweep away the righteous with the wicked?

Suppose there are fifty righteous within the city; will You indeed sweep it away and not spare the place for the sake of the fifty righteous who are in it?

Far be it from You to do such a thing, to slay the righteous with the wicked, so that the righteous and the wicked are treated alike. Far be it from You! Shall not the Judge of all the earth deal justly?”

So the Lord said, “If I find in Sodom fifty righteous within the city, then I will spare the whole place on their account.”

Suppose the fifty righteous are lacking five, will You destroy the whole city because of five?” And He said, “I will not destroy it if I find forty-five there.”

Judah recognized them, and said, “She is more righteous than I, inasmuch as I did not give her to my son Shelah.” And he did not have relations with her again.