Deuteronomy 18, The Quran and Satanic Verses

Two Short, Sound, Simple Proofs that Muhammad Was a False Prophet

By David Wood

“But the prophet who speaks a word presumptuously in My name which I have
not commanded him to speak . . . that prophet shall die.”
~GOD (Deuteronomy18:20)[1]

“I have fabricated things against God and have imputed to Him words which He has not spoken.”
~MUHAMMAD (Al-Tabari 6:111)[2]

Muhammad claimed that Jewish and Christian scriptures had predicted his coming (see, e.g., Qur’an 7:157). This has led Muslim apologists to comb the Old and New Testaments in search of passages that refer to their prophet. While all biblical evidence offered by Muslims in support of their prophet appears horribly strained to non-Muslims (provided the latter read the passages in context) and has been thoroughly refuted time and again, it is still common to hear Muslims claim that the Bible speaks about Muhammad.

The most popular “prophecy” about Muhammad is found in Deuteronomy 18. It is quite ironic, then, to learn that, according to Deuteronomy 18, Muhammad can’t possibly be a prophet. As we will see, this puts Muslims in an awkward position, and helps show the lengths to which they will go in their efforts to defend their prophet.

The purpose of this essay is to prove, based on Muslim claims (including their appeal to Deuteronomy 18), that Muhammad was a false prophet. I will begin by presenting two arguments against the prophethood of Muhammad, and I will follow this by carefully defending the arguments. Once I have shown that the arguments are sound, I will briefly discuss the options available to Muslims who want to reject the obvious conclusion.


There are two elements to look for when examining deductive arguments: valid logic and true premises. To say that a deductive argument is valid is to say that, due to the logical form, true premises will always lead to a true conclusion. The most basic argument form is the syllogism, and the most basic valid form of the syllogism is Modus Ponens.[3] The logical form of the following arguments is Modus Ponens; thus, they are logically valid:

Argument A—false gods and false prophets

A1. If a person speaks in the names of false gods, that person is a false prophet.
A2. Muhammad spoke in the names of false gods.
A3. Therefore, Muhammad was a false prophet.

Argument B—false revelations and false prophets

B1. If a person delivers a revelation that doesn’t come from God, that person is a false prophet.
B2. Muhammad delivered a revelation that didn’t come from God.
B3. Therefore, Muhammad was a false prophet.

Since the logic of both arguments is valid, true premises will always lead to a true conclusion. Hence, if the premises of these arguments are true, Muhammad was a false prophet. Let us turn, then, to a careful discussion of our premises.


A1 and B1 seem intuitively obvious. That is, it seems clear that if a person speaks in the names of false gods or delivers revelations that don’t come from God, the person cannot be a true prophet. Nevertheless, by appealing to the Bible to bolster their belief in Muhammad, Muslims have inadvertently granted that A1 and B1 are true.

Deuteronomy 18 serves as the foundation of Islam’s “Argument from Biblical Prophecy,” used by generations of Muslims to prove that Muhammad was a true prophet. Indeed, the popular Brief Illustrated Guide to Understanding Islam uses Deuteronomy 18 as its primary evidence that the Bible speaks of Muhammad. Author I. A. Ibrahim says,

The Biblical prophecies on the advent of the Prophet Muhammad are evidence of the truth of Islam for people who believe in the Bible.

In Deuteronomy 18, Moses stated that God told him: “I will raise up for them a prophet like you from among their brothers; I will put my words in his mouth, and he will tell them everything I command him. If anyone does not listen to my words that the prophet speaks in my name, I myself will call him to account.” (Deuteronomy 18: 18-19)[4]

The book goes on to argue that Muhammad fulfilled this prophecy in numerous ways. While such claims have been refuted ad nauseum,[5] I will simply note that Muslims have here granted that Deuteronomy 18:18-19 is inspired by God (since they regard it as a miraculous prophecy). Surely, then, we can’t ignore the next verse, where God says:

“But the prophet who speaks a word presumptuously in My name which I have not commanded him to speak, or which he speaks in the name of other gods, that prophet shall die.” (Deuteronomy 18:20)

Here we have two criteria for spotting a false prophet: (1) delivering a revelation which God has not “commanded him to speak,” and (2) speaking “in the name of other gods.” Since Muslims who appeal to so-called biblical prophecies of Muhammad have given this passage their stamp of approval, they cannot deny the truth of A1 and B1. To sum up, Muslims have appealed to a passage in Deuteronomy 18, and that passage entails premises A1 and B1. Thus, according to Muslim claims, the first premise of each of the Deuteronomy Deductions is true.


We have seen that, according to a passage regarded by many Muslims as divine revelation, a person who either delivers a message that does not come from God or speaks in the names of false gods must be a false prophet. But this means that Muhammad was a false prophet, since he did both when he delivered the infamous “Satanic Verses.”

We learn about the Satanic Verses, not from Christian or Jewish sources, but from early Muslim writings. Accounts of the Satanic Verses are given in a number of early sources, including: (1) Ibn Ishaq, (2) Wakidi, (3) Ibn Sa’d, (4) al-Tabari, (5) Ibn Abi Hatim, (6) Ibn al-Mundhir, (7) Ibn Mardauyah, (8) Musa ibn ‘Uqba, and (9) Abu Ma’shar.[6] According to the great Muslim scholar Ibn Hajar, three chains of transmission (isnad) in these accounts “satisfy the conditions requisite for an authentic report.”[7] Moreover, Sahih al-Bukhari, Islam’s most trusted source on the life of Muhammad, gives indirect confirmation of the event (Number 4862, quoted below). Beyond this, certain verses of the Qur’an (17:73-5 and 22:52-3) were revealed in response to Muhammad’s embarrassing lapse into polytheism.

We therefore have compelling historical evidence that the story is authentic. (For a thorough discussion of the evidence for the Satanic Verses, see “Muhammad and the Satanic Verses.”) In fact, the historical method virtually guarantees the legitimacy of the story. Historians examining the lives of leaders and religious figures employ what is known as the “Principle of Embarrassment,” a principle which also carries much weight in legal investigations. Law professor Annette Gordon-Reed sums up the principle thus: “Declarations against interest are regarded as having a high degree of credibility because of the presumption that people do not make up lies in order to hurt themselves; they lie to help themselves.”[8] Applying the Principle of Embarrassment to accounts of the Satanic Verses, we see immediately that Muslims would not have invented this story, since it calls Muhammad’s reliability into question. We also see that the story couldn’t have been invented by non-Muslims; for if non-Muslims had invented the story, Muslims would have exposed the story’s origin, instead of defending it in their earliest historical works.

The evidence for the general reliability of the Muslim accounts concerning the Satanic Verses is therefore too overwhelming to ignore. With this in mind, let us consider a condensed account of what happened, based on the History of al-Tabari.

According to al-Tabari,

When the Messenger of God saw how his tribe turned their backs on him and was grieved to see them shunning the message he had brought to them from God, he longed in his soul that something would come to him from God which would reconcile him with his tribe. With his love for his tribe and his eagerness for their welfare it would have delighted him if some of the difficulties which they made for him could have been smoothed out, and he debated within himself and fervently desired such an outcome. Then God revealed:

By the Star when it sets, your comrade does not err, nor is he deceived; nor does he speak out of (his own) desire . . .

and when he came to the words:

Have you thought upon al-Lat and al-‘Uzza and Manat, the third, the other?

Satan cast on his tongue, because of his inner debates and what he desired to bring to his people, the words:

These are the high-flying cranes; verily their intercession is accepted with approval. (Al-Tabari, p. 108)

The polytheists were delighted that Muhammad had at last approved of their gods. To return the kindness, they “prostrated themselves because of the reference to their gods which they had heard, so that there was no one in the mosque, believer or unbeliever, who did not prostrate himself” (p. 109).

Muhammad’s friendly relations with the polytheists were short-lived, however, for he soon learned that his verses praising pagan idols came not from God, but from Satan. Saddened to recognize his treachery against Allah, Muhammad lamented: “I have fabricated things against God and have imputed to Him words which He has not spoken” (p. 111). Yet “Gabriel” comforted Muhammad, informing him that all prophets fall for Satan’s tricks from time to time. This staggering and unbelievable claim even found its way into the Qur’an:

“And We did not send before you any apostle or prophet, but when he desired, the Shaitan made a suggestion respecting his desire; but Allah annuls that which the Shaitan casts, then does Allah establish His communications, and Allah is Knowing, Wise.” (Surah 22:52)[9]

According to the next verse, Allah allows his prophets to receive revelations from Satan in order to test hard-hearted people.

Whatever we think of the preposterous Qur’anic explanation of the Satanic Verses (and its defense of Muhammad), it is clear that the Prophet of Islam, on at least one occasion, delivered a message that did not come from God. It is also clear that Muhammad, on at least one occasion, spoke in the names of false gods.[10] Thus, we can establish from Muslim sources that A2 and B2 are almost certainly true.


1 Bible quotations are from the New American Standard Bible, Updated Edition.

2 The History of al-Tabari, Volume VI: Muhammad at Mecca, W. Montgomery Watt and M. V. McDonald, trs. (Albany: State University of New York Press, 1988).

3 Modus Ponens takes the form:

1. If P, then Q.
2. P.
3. Therefore, Q.

Here we may substitute various elements for P and Q, giving us, for instance:

1. If Fido is a dog, then Fido is a mammal.
2. Fido is a dog.
3. Therefore, Fido is a mammal.

4 Ibrahim, I. A. A Brief Illustrated Guide to Understanding Islam (Houston: Darussalam, 1997), p. 33.

5 See, for example, “Muhammad in the Bible?

6 For references, see “Muhammad and the Satanic Verses.”

7 Ibn Hajar, quoted in Allam Shibli Nu’mani, Sirat-un-Nabi, Volume 1, M. Tayyib Bakhsh Budayuni, tr. (New Delhi: Kitab Bhavan, 2004), p. 164.

8 Annette Gordon-Reed, Thomas Jefferson and Sally Hemings: An American Controversy (Charlottesville: University of Virginia Press, 1997).

9 Qur’an quotations are from the M. H. Shakir translation.

10 One might object that Muhammad did not actually speak in the names of the pagan gods. That is, he did not say, “I come to you in the name of Manat.” Instead, he spoke in the name of Allah, and merely approved of the intercession of the pagan gods. However, the point of the passage in Deuteronomy is clearly that anyone who promotes polytheism is a false prophet. And Muhammad certainly promoted polytheism on this occasion.


I would only add that it is prohibited to speak the names of false deities:

Shmoth 23.13 “And in all things that I have said unto you take ye heed; and make no mention of the name of other gods, neither let it be heard out of thy mouth.”


About johnmhummasti

Was the victim of Human Rights Abuses (e.g. Hummasti v Bell, 98-3651-JTC) while a patient in the custody of the US Attorney General and hospitalized under 18 USC 4241 through 4244, et seq.! Interests: Biblical Studies, Talmudic Studies, Dead Sea (Yam Melek [Sea of Kings Soferim]) Scrolls, Scribal (Stam Sofer) Traditions, Cantorial (Hazzan) Psalms (Tehillim). Illustrated Calligraphy (e.g. Ketuvim [Jewish Marriage Contracts], Poetry). Self Published Manuscripts and Screen Plays at yhummastiscribd web site:
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