From the implication of what is said, "and they forsook" (Judges 2:13), do I not know that they did not serve Him? Then what does the text teach by saying "and they did not serve Him"? Rabbi Eleazar said: The Holy One, blessed be He, said: My children did not make Me even like this lupine, which one boils seven times and eats as a dessert at the end of the meal. "Let not the priestess be as the innkeeper's wife" [that is, one of high standing should not behave like one of low standing].
Not Even a Lupine - The Sting in They Forsook the LORD
Yalkut Shimoni on Nach 41:7
ממשמע שנאמר ויעזבו איני יודע שלא עבדוהו, אלא מה ת"ל ולא עבדוהו, אמר רבי אלעזר אמר הקב"ה אפילו כתורמוס הזה ששוקלים אותו שבע פעמים ואוכלים אותו בקנוח סעודה לא עשאוני בני, לא תהא כהנת כפונדקית: