Gal 3.16 In the above verse, the apostle Paul says, Now to Abraham and his seed were the promises made. He [God] saith not, And to 'seeds', as of many; but as of one, 'And to thy seed', which is Christ. The verse is crucial because it clearly shows that Jesus Christ is the Seed of Abraham. Paul points out that the promises were made to Abraham and to a single offspring or descendant or 'seed' (the Christ). Importantly for those who believe in Christ, they are said to be 'the children of Abraham' (Gal 3.7, 9, 26, 27, 29): through their faith in Christ, they are the 'seed' or descendants of Abraham. And Abraham, as we know, was not considered righteous ('rightwised') because of anything he did; he was 'rightwised' (=made right) because he believed God's promises 1 (Rom 4.22; Gen 15.6). Romans also says that God is God of both Jew and Gentile on the basis of faith (Rom 3.29-30). That is, not on the basis of religion, culture...
we look not to the things that are seen but to the things that are unseen --Paul, Apostle to the Gentiles