Galatians 3:6-9

3:6 Just as Abraham believed God, and it was credited to him as righteousness, 3:7 so then, understand that those who believe are the sons of Abraham. 3:8 And the scripture, foreseeing that God would justify the Gentiles by faith, proclaimed the gospel to Abraham ahead of time, saying, “All the nations will be blessed in you.” 3:9 So then those who believe are blessed along with Abraham the believer.

Galatians 3:29

3:29 And if you belong to Christ, then you are Abraham’s descendants, heirs according to the promise.