'Righteous' in the Bible

These are the family records of Noah. Noah was a righteous man, blameless among his contemporaries; Noah walked with God.

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

Abraham stepped forward and said, “Will You really sweep away the righteous with the wicked?

What if there are 50 righteous people in the city? Will You really sweep it away instead of sparing the place for the sake of the 50 righteous people who are in it?

You could not possibly do such a thing: to kill the righteous with the wicked, treating the righteous and the wicked alike. You could not possibly do that! Won’t the Judge of all the earth do what is just?”

The Lord said, “If I find 50 righteous people in the city of Sodom, I will spare the whole place for their sake.”

suppose the 50 righteous lack five. Will you destroy the whole city for lack of five?”He replied, “I will not destroy it if I find 45 there.”