'Righteous' in the Bible

These [are] the generations of Noah. Noah [was] a righteous man, without defect in his generations. Noah walked with God.

Then Yahweh said to Noah, "Go--you and all your household--into the ark, for I have seen you [are] righteous before me in this generation.

And Abraham drew near [to Yahweh] and said, "Will you also sweep away the righteous with the wicked?

If perhaps there are fifty righteous in the midst of the city, will you also sweep [them] away and not forgive the place on account of the fifty righteous in her midst?

Far be it from you to do such a thing as this, to kill [the] righteous with [the] wicked, that the righteous would be as the wicked! Far be it from you! Will not the Judge of all the earth do justice?"

And Yahweh said, "If I find fifty righteous in Sodom, in the midst of the city, then I will forgive the whole place for their sake."

Perhaps the fifty righteous are lacking five--will you destroy the whole city on account of the five?" And he answered, "I will not destroy [it] if I find forty-five there."

Now Abimelech had not approached her, so he said, "my Lord, will you even kill a righteous people?"

Then Judah recognized [them] and said, "She is more righteous than I, since I did not give her to my son Shelah." And he did not know her again.