"...in Romans 3.21–31, by anyone’s showing a vital and central passage, Paul makes what most commentators in the reformation tradition regard as a strange shift in verse 29, when he asks ‘Or is God the God of the Jews only?’ (Notice how the NIV, for instance, omits the word ‘Or’.) If he had been talking all along simply about individual sinners being put right with God, we should indeed regard this as a sudden intrusion of ethnic questions. But he hasn’t. As chapter 4 will reveal, when we allow it to play its full role, he has been talking about God’s faithfulness to the covenant with Abraham, and about God’s creation of a single family from both halves of sinful humanity. God’s declaring that sinners are now in a right relation to himself and God’s declaring that believing Jews and believing Gentiles belong in the same family are inextricably bound up with one another."