'Instead' in the Bible

Now the word of the Lord came to him: “This one will not be your heir; instead, one who comes from your own body will be your heir.”

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?

Lot departed from Zoar and lived in the mountains along with his two daughters, because he was afraid to live in Zoar. Instead, he and his two daughters lived in a cave.