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Is there a connection between destroying idolatry and Korban Pesach?
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Malbim: Also Pesach Mitzrayim was primarily to nullify the idolatry of Egypt; they worshipped the lamb - "Hen Nizbach Es To'avas Mitzrayim 1
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The verse does not prove that they worshipped specifically lambs. Even if you will say that Moshe discusses offering Pesach, also a goat can be Korban Pesach! (PF)