Deuteronomy 32:21

(21)

“They have made me jealous with a no-god;

They have provoked me with their vanities:
And I will make them jealous with a no-people;
With a foolish nation will I provoke them.”

St. Paul comments on this in Romans 10, as proving that Israel was informed of the calling of the Gentiles, and compares Isaiah 65:1, “I was found of them that sought me not. I made myself manifest unto those that inquired not after me.”

Rashi quotes, perhaps not quite inappropriately Isaiah 23:13, and gives this explanation, “A no-people,” i.e., a nation without a name; as it is said, “Behold the land of the Chaldseans: this people was not.”