6So also Abraham “believed God, and it was credited to him as righteousness.”7Understand, then, that those who have faith are children of Abraham.8Scripture foresaw that God would justify the Gentiles by faith, and announced the gospel in advance to Abraham: “All nations will be blessed through you.”9So those who rely on faith are blessed along with Abraham, the man of faith.
15Brothers and sisters, let me take an example from everyday life. Just as no one can set aside or add to a human covenant that has been duly established, so it is in this case.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,” 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.18For if the inheritance depends on the law, then it no longer depends on the promise; but God in his grace gave it to Abraham through a promise.
24So the law was our guardian until Christ came that we might be justified by faith.25Now that this faith has come, we are no longer under a guardian.26So in Christ Jesus you are all children of God through faith,27for all of you who were baptized into Christ have clothed yourselves with Christ.28There is neither Jew nor Gentile, neither slave nor free, nor is there male and female, for you are all one in Christ Jesus.29If you belong to Christ, then you are Abraham’s seed, and heirs according to the promise.