Romans 10:3 : For being ignorant of God's righteousness, and seeking to establish their own, they did not subject themselves to the righteousness of God. The Jews fully understood that God was a righteous being. It was not that of which they were ignorant. They were ignorant of God's plan, or way, of righteousness. This righteousness is something to which men should submit and to which the Jews had not submitted. This righteousness is revealed in the gospel this they had repudiated, and were, therefore, in a lost condition.