Galatians 3:16-18

ISV(i) 16 Now the promises were spoken to Abraham and to his descendant. It doesn’t say “descendants,” referring to many, but “your descendant,” referring to one person, who is the Messiah. 17 This is what I mean: The Law that came 430 years later did not cancel the covenant that God ratified previously. The promise was never nullified. 18 For if the inheritance comes about through the Law, it no longer comes about through the promise. But it was through a promise that God so graciously gave it to Abraham.