It's certainly not all about Israel even if they respond back to God in the future. All believing gentiles (everybody not an ethnic Jew) were accepted into God's fold in the NT times when Peter had the dream of the "unclean and the clean" the upshot of which was that all of us unclean Gentiles (in the eyes of all Jews anyway which of course Peter was) were now to be equal par takers of God's grace through belief in Jesus Christ. Paul was thus commissioned to go and preach exclusively to the "unwashed" masses--us!
