Galatians 3:6-8, 14

Even as Abraham believed God, and it was reckoned unto him for righteousness. Know therefore that they that are of faith, the same are sons of Abraham. And the scripture, foreseeing that God would justify the Gentiles by faith, preached the gospel beforehand unto Abraham, saying, In thee shall all the nations be blessed.

that upon the Gentiles might come the blessing of Abraham in Christ Jesus; that we might receive the promise of the Spirit through faith.