Romans 10:19 - Matthew Poole's English Annotations on the Holy Bible

Here he proves by three testimonies out of the Old Testament, that the Jews must needs have heard the sound of the gospel, together with the Gentiles; only they rejected it, when the other embraced it. And so he layeth the ground of what he was purposed to handle in the following chapter, concerning the receiving of the Gentiles, and the casting off, and after calling, of the Jews. Did not Israel know; here something must be supplied to make up the sense neither God, or the gospel, or the righteousness of faith, or the conversion of the Gentiles. The Israelites could not well pretend ignorance, considering what Moses and Isaiah had said, in whom, or in whose writings, they were conversant. Moses saith; viz. in Deuteronomy 32:21. Still he follows the translation of the Seventy. I will provoke you to jealousy by them that are no people, and by a foolish nation I will anger you; here God threateneth the Jews, that he would punish them with jealousy and anger, by preferring the Gentiles before them; at the sight whereof, their hearts should be sore vexed; to behold all their privileges taken from them, and given to a people whom they accounted most vile and despicable, to be no people in regard of them, to be dogs and beasts rather than men: see Acts 13:45. Read the cited place in Deuteronomy Deuteronomy 32:21 and you will find that God speaks of this as a fit punishment upon the Jews for their idolatry. They had chosen to themselves such as were no gods; and therefore, to requite them, God would take to him such as were no people: they had chosen to themselves (as it were) another husband; and God, to be even with them, had chosen another wife.