מדרש על איוב 36:33

R. Ami said again: "What is the meaning of the passage (Ib) If the serpent bite before it is charmed, then the charmer hath no advantage. This implies that if thou seest a generation over which the heavens are rust-colored like copper, so as to let down neither dew nor rain, it is because that generation is in lack of men who deliver silent prayers for rain. What is the remedy? Let the people go and find out one who can offer silent prayers and who would offer it [and have the curse removed]; as it is written (Job 36, 33) Let his friends utter a silent prayer. Then the charmer hath no advantage, implies that, if one who is able to, but will not pray, what benefit will he derive from it? If however he did pray but was not answered, what then shall the generation do? Let them go to the most pious man of that generation and have him increase his prayers; as it is said (Ib) And commandeth to Mafgia for him. The word Mafgia refers to prayer; as it is said (Jer. 7, 17) Therefore pray not thou for this people, nor lift up in their behalf entreaty or prayer, neither (Tifga) make intercession to me. If, after the pious person had prayed and was answered, he became too proud, he will cause wrath to be brought down upon the world; as it is said (Job 36, 33) The cause of storm is the rising tempest."