Explain the difference between BY faith and THROUGH faith
Rom 3:30 Seeing it is one God, which shall justify the circumcision BY faith, and uncircumcision THROUGH faith.
In the scripture above, Paul writes an interesting thing. He distinguishes between the circumcised and the uncircumcised by referring to their justification as by faith or through faith. So, what is the difference? Can this be explained and clarified? Many commentaries simply conclude that there is no difference between the two, but why then would Paul, through inspiration, write different words for each group. I do not agree with these commentaries as I believe that they are different, as much so as the doctrine between Israel and the Body of Christ are different. I am no formal scholar of doctrine and hermeneutics, so I do not claim absolute accuracy in my interpretation, but I have come to believe that Romans 4 has some insightful content to clarify this difference.
Rom.4:11-17 And he [Abraham] received the sign of circumcision, a seal (Eph.1:13) of the righteousness of the faith which he had while still uncircumcised, that he might be the father of ALL those who believe, though they are uncircumcised [Gentiles], that righteousness might be imputed to them also [as the Body of Christ], 12 and the father of circumcision to those who not only are of the circumcision [Jews], but who also walk in the steps of the faith [Little Flock] which our father Abraham had while still uncircumcised.