24. Would a Holy Book have a felt need to repeatedly deny that it is from Satan?

Matthew 7:15-20“Beware of false prophets, who come to you in sheep’s clothing, but inwardly are ravening wolves. By their fruits you will know them. Do you gather grapes from thorns or figs from thistles? Even so, every good tree produces good fruit, but the corrupt tree produces evil fruit. A good tree can’t produce evil fruit, neither can a corrupt tree produce good fruit. Every tree that doesn’t grow good fruit is cut down and thrown into the fire. Therefore by their fruits you will know them.

John 8:44-49You are of your father the devil, and you want to do the desires of your father. He was a murderer from the beginning, and doesn’t stand in the truth, because there is no truth in him. When he speaks a lie, he speaks on his own; for he is a liar, and the father of lies. But because I tell the truth, you don’t believe me. Which of you convicts me of sin? If I tell the truth, why do you not believe me? He who is of God hears the words of God. For this cause you don’t hear, because you are not of God.” Then the Jews answered him, “Don’t we say well that you are a Samaritan, and have a demon?” Jesus answered, “I don’t have a demon, but I honour my Father and you dishonour me.

An -Nahl (The Bee) 16:98And when thou recitest the Qur'an, seek refuge in Allah from Satan the outcast.

Saba' (Sheba) 34:8Hath he invented a lie concerning Allah, or is there in him a madness? Nay, but those who disbelieve in the Hereafter are in torment and far error.

Saba' (Sheba) 34:46Say (unto them, O Muhammad): I exhort you unto one thing only: that ye awake, for Allah's sake, by twos and singly, and then reflect: There is no madness in your comrade. He is naught else than a warner unto you in face of a terrific doom.

At-Takwir (The Enfolding) 81:22And your comrade is not mad.

At-Takwir (The Enfolding) 81:25Nor is this the utterance of a devil worthy to be stoned.