Reference for Deuteronomy 32:21

הֵ֚ם קִנְא֣וּנִי בְלֹא־אֵ֔ל כִּעֲס֖וּנִי בְּהַבְלֵיהֶ֑ם וַאֲנִי֙ אַקְנִיאֵ֣ם בְּלֹא־עָ֔ם בְּג֥וֹי נָבָ֖ל אַכְעִיסֵֽם׃

They have roused Me to jealousy with a no-god; They have provoked Me with their vanities; And I will rouse them to jealousy with a no-people; I will provoke them with a vile nation.