"And did they understand that G-D would give His salvation to others if they refused to take it? Yes, for even back in the time of Moshe, G-D had said that He would make His people jealous
and try to wake them up by giving His salvation to the foolish heathen nations."
Romans 10:19 (Paul's paraphrased commentary in plain English)
"Because that which the world deems foolish in G-D is wiser than men's wisdom,
and that which it deems feeble in G-D is still mightier than men's might."
1 Corinthians 1:25 (Paul's paraphrased commentary in plain English)
16For I am not ashamed of the Good News, since it is God’s powerful means of bringing salvation to everyone who keeps on trusting, to the Jew especially, but equally to the Gentile. 17For in it is revealed how God makes people righteous in His sight; and from beginning to end it is through trust — as the Tanakh puts it, “But the person who is righteous will live his life by trust.” (Habakkuk 2:4; Proverbs 3:5-6)