King James Bible
Seeing it is one God, which shall justify the circumcision by faith, and uncircumcision through faith.

New King James Version
since there is one God who will justify the circumcised by faith and the uncircumcised through faith.

American Standard Version
if so be that God is one, and he shall justify the circumcision by faith, and the uncircumcision through faith.

Berean Study Bible
since there is only one God, who will justify the circumcised by faith and the uncircumcised through that same faith.

Douay-Rheims Bible
For it is one God, that justifieth circumcision by faith, and uncircumcision through faith.

English Revised Version
if so be that God is one, and he shall justify the circumcision by faith, and the uncircumcision through faith.

World English Bible
since indeed there is one God who will justify the circumcised by faith, and the uncircumcised through faith.

Young's Literal Translation
yes, also of nations; since one is God who shall declare righteous the circumcision by faith, and the uncircumcision through the faith.

Romans 3:30 Additional Translations ...