And the Scripture, foreseeing that God would justify the Gentiles by faith, preached the gospel to Abraham beforehand, saying, "In you all the nations shall be blessed."
Galatians 3:8
Surrounding context
3:7 Therefore know that only those who are of faith are sons of Abraham.
3:8 And the Scripture, foreseeing that God would justify the Gentiles by faith, preached the gospel to Abraham beforehand, saying, "In you all the nations shall be blessed."
3:9 So then those who are of faith are blessed with believing Abraham.