¹² The law is not based on faith; on the contrary, it says, “The person who does these things will live by them.”^[a](A)

¹⁷ What I mean is this: The law, introduced 430 years^(A) later, does not set aside the covenant previously established by God and thus do away with the promise. ¹⁸ For if the inheritance depends on the law, then it no longer depends on the promise;^(B) but God in his grace gave it to Abraham through a promise.