30 What does all this mean? Even though the Gentiles were not trying to follow God's standards, they were made right with God. And it was by faith that this took place. 31 But the people of Israel, who tried so hard to get right with God by keeping the law, never succeeded. 32 Why not? Because they were trying to get right with God by keeping the law instead of by trusting in him. They stumbled over the great rock in their path. 33 God warned them of this in the Scriptures when he said, "I am placing a stone in Jerusalem that makes people stumble, a rock that makes them fall. But anyone who trusts in him will never be disgraced."
Matthew Henry's Commentary on Romans 9:30-33
Commentary on Romans 9:30-33
(Read Romans 9:30-33)
The Gentiles knew not their guilt and misery, therefore were not careful to procure a remedy. Yet they attained to righteousness by faith. Not by becoming proselytes to the Jewish religion, and submitting to the ceremonial law; but by embracing Christ, and believing in him, and submitting to the gospel. The Jews talked much of justification and holiness, and seemed very ambitious to be the favourites of God. They sought, but not in the right way, not in the humbling way, not in the appointed way. Not by faith, not by embracing Christ, depending upon Christ, and submitting to the gospel. They expected justification by observing the precepts and ceremonies of the law of Moses. The unbelieving Jews had a fair offer of righteousness, life, and salvation, made them upon gospel terms, which they did not like, and would not accept. Have we sought to know how we may be justified before God, seeking that blessing in the way here pointed out, by faith in Christ, as the Lord our Righteousness? Then we shall not be ashamed in that awful day, when all refuges of lies shall be swept away, and the Divine wrath shall overflow every hiding-place but that which God hath prepared in his own Son.