All theology is ultimately practical — it is about real life — so how does what Paul write here, speak into how we are to live? That is the question we need to consider as we explore this text. And what we discover is that God is forming one, unified people for His name, comprised of both Jew and non-Jew saved by grace alone through faith alone. This truth has all kinds of implications for how we ought to live in relationship with others, both within and outside of the church.
