For they being ignorant of God's righteousness, and going about to establish their own righteousness, have not submitted themselves unto the righteousness of God.
All Commentaries on Romans 10:3 Go To Romans 10
Augustine of Hippo
AD 430
Paul said this about the Jews who because of their selfconfidence rejected grace and as a result did not believe in Christ. The Jews, he says, seek to establish a righteousness of their own that comes from the law, not that the law was established by them but rather that they had placed their righteousness in the law which comes from God by supposing that they were able to fulfill this law by themselves. For they were ignorant of the righteousness of God, not that righteousness whereby God is righteous but the one which comes to man from God.