In Romans 10 Paul writes out of both disappointment and urgency. He is saddened that his fellow Jews have not yet accepted the truth of the gospel, and he feels urgently called to reach these brothers and sisters in some way. Chapter 10, then, is a discussion of Paul's understanding of "righteousness," of sola fide in terms most familiar to his Jewish kinfolk. He employs both pentateuchal and prophetic writings to aid him in his designated task - witnessing to his "stiff-necked" friends.
In verses 5-15, Paul proclaims the new relationship between the law and righteousness since the coming of Jesus. In verse 5, Paul summons no less than Moses himself to make the connection between believing and living one's faith. Paul reinterprets Moses' lecture to the Israelites (Deuteronomy 30:11-14) who…