muhummed's experience in the cave of hira, later to be known as jabal-un-noor— the mountain of light, and his response to that first revelation is the exact fulfilment of another biblical prophecy. in the book of isaiah, chapter 29, verse 12, we read: "and the book" (al-kitaab, al-quran—the 'reading', the 'recitation') "is delivered to him that is not learned," the unlettered prophet, holy qur'an 7:158)
"saying, read this, i pray thee:" (the words 'i pray thee", are not in the hebrew manuscripts, compare with the roman catholics' "douay version" and also with the "revised standard versions") "and he saith, i am not learned." ("i am not learned." is the exact translation of the words  which words muhummed uttered twice to the holy ghost — the archangel gabriel, when he was commanded  "read!").

let me quote the verse in full without a break as found in the "king james version," or the "authorised version" as it is more popularly known: "and the book is delivered to him that is not learned, saying, read this, i pray thee: and he saith, i am not learned." (holy bible) isaiah 29:12.
 

 it may be noted that there were no arabic bibles* in existence in the 6th century of the christian era when muhummed lived and preached! besides, he was absolutely unlettered and unlearned. no human had ever taught him a word. his teacher was his creator—
* there are today arabic bibles in fifteen different scripts and dialects for the arabs alone. see "the gospels in many tongues", a reproduction, in book i of vol. 11 under the heading “a muslim dictionary of the bible." alternative title "combat kit" against bible thumpers.

"he does not speak (aught), of (his own) desire

it is no less than inspiration sent down to him:

he was taught by one mighty in power,"

(sura najm) holy quran 53:3-5

without any human learning, 'he put to shame the wisdom of the learned'."