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See next note.
As regards my occasional rendering of sihr (lit., "sorcery" or "magic") as "spellbinding eloquence", see 74:24 , where this term occurs for the first time in the chronology of Qur'anic revelation. - By rejecting the message of the Qur'an on the specious plea that Muhammad is but a human being endowed with "spellbinding eloquence", the opponents of the Qur'anic doctrine in reality "conceal their innermost thoughts": for, their rejection is due not so much to any pertinent criticism of this doctrine as, rather, to their instinctive, deep-set unwillingness to submit to the moral and spiritual discipline which an acceptance of the Prophet's call would entail.
Allah's Message is free and open, in the full light of day. His enemies plot against it in secrecy, lest their own false motives be exposed. Their jealousy prevents them from accepting a "man like themselves" as a teacher or warner or guide.
Literally, "in a state in which you (actually) see (that it is witchcraft)". When Allah's Messenger is proved to be above them in moral worth, in true insight, in earnestness and power of eloquence, they accuse him of witchcraft, a word which may mean nothing, or perhaps some mysterious deceitful arts.