Galatians 3:16-17

16The promises were spoken to Abraham and to his seed. Scripture does not say “and to seeds,” meaning many people, but “and to your seed,” Gen. 12:7; 13:15; 24:7 meaning one person, who is Christ. 17What I mean is this: The law, introduced 430 years later, does not set aside the covenant previously established by God and thus do away with the promise.