וְֽאוּלָ֗ם אַתֶּ֥ם טֹֽפְלֵי־שָׁ֑קֶר רֹפְאֵ֖י אֱלִ֣ל כֻּלְּכֶֽם׃
Rashi on Job
all of you are quacks Heb. רפאי אלל. Every אֱלִיל in Scripture is an expression of אַל, nought. Our Sages, however, explained that this is the cervical ligament, which [if damaged] has no cure, and it is called אֱלָל.