Once more the apostle turns to his oft-repeated theme, that this salvation is not the sole property of the Jews, but belongs to the Gentiles as well.  Here, however, his argument becomes somewhat more complex and involved than in earlier passages.  Nonetheless, the sense is clear enough when once we put our minds to it, and it reveals a number of precious truths which help to more firmly establish the doctrine of God’s sovereign justifying grace.

He asks the question, whether the blessedness that David spoke of, which came upon the man to whom God would not impute sin, was for the circumcision (or Jews) only, or whether it could come upon the uncircumcision (Gentiles) as well.  He notes once again that the blessing of imputed righteousness comes through faith; at least it did with Abraham, who is the prototype of all believers.  Was that blessing for him only, or for him and his descendants only, or for all who would look to God in honest faith?