Needing Messengers of Good Tidings
The Chosen People chafed, not only at the freeness of God's justifying grace, but because there was no difference made, so far as salvation was concerned, between them and the Gentiles. Surely there ought to be a special doorway for them into eternal life, apart from that trodden by the feet of the ordinary heathen world! Were they not the children of Abraham, the friend of God? Here the Apostle was compelled to withstand them. No, said he, it cannot be! There is no difference between Jew and Greek. All have sinned, and the same Lord is over all, rich to those who call upon Him, of whatever nationality.
The guests for whom the marriage feast was prepared refused to come, and therefore it was decreed that the servants of the great King should preach the gospel to every creature, and scour the highways and byways of the world for guests. The remainder of the chapter, Romans 10:14, etc., therefore vindicates the Apostle in his determination to preach the gospel beyond the limits of his own people; and in doing so, he was acting upon the old words of Deuteronomy 32:21. God would provoke their jealousy by a no-people, as they had provoked His by no-gods, Romans 10:19.