'Wipe' in the Bible

Then the Lord said, “I will wipe off from the face of the earth mankind, whom I created, together with the animals, creatures that crawl, and birds of the sky—for I regret that I made them.”

Seven days from now I will make it rain on the earth 40 days and 40 nights, and I will wipe off from the face of the earth every living thing I have made.”

What if there are fifty godly people in the city? Will you really wipe it out and not spare the place for the sake of the fifty godly people who are in it?