Romans 3:29-31 The God of Jews only is He, and not also of nations?

YLT⁽ⁱ⁾ ²⁹ The God of Jews only is He, and not also of nations? ³⁰ yes, also of nations; since one is God who shall declare righteous the circumcision by faith, and the uncircumcision through the faith. ³¹ Law then do we make useless through the faith? let it not be! yea, we do establish law.