Paul continued to appeal to his Jewish audience in these verses as in the former two. If justification is by the Law, God must be the God of the Jews only since God only gave the Law to the Jews. Paul"s point was that there are not two ways of salvation, one for the Jews by works and the other for Gentiles by faith. This is only logical, he reasoned, since there is only one God who is the God of all humankind. Paul probably used two separate prepositions in Romans 3:30 ("by," ek, and "through," dia) simply for literary variety. [1] His point was that there is only one method of obtaining God"s righteousness. [2][source]