But now is made manifest. — The first clause of this verse goes with the last clause of the preceding “mystery,” which before was kept secret, but now has been “made manifest.” The rest of the verse all hangs together: “this mystery, through the help of the corroboration which it derives from the prophets of the Old Testament, has, by God’s command to us, the Apostles, been made known.”
By the scriptures of the prophets. — Through the help of that appeal to prophecy which we are enabled to make.
According to the commandment. — That which had taken place according to the command of God was the making known of the gospel to the Gentiles, as, e.g., when Paul and Barnabas were specially “separated” for the work by the Holy Ghost.
Made known to all nations. — The word “to” has a little more stress laid upon it than would appear from the English, “made known so as to reach all nations.”
For the obedience of faith. — An exact repetition of the phrase in Romans 1:5, “to win over the Gentiles unto the allegiance demanded of them by faith in Christ.”