I have studied the Quran for years and I can assure you that you are worng.
Muslims do not agree with their Allah and believe he either could not or would not keep his word.
They believe their Allah is my God but that he allowed sinful men to change his words.
They don't belive the Quran that says God's word can not be changed.
They don't believe the Quran when it says it is a continuence of the Gospel and Torah and that these are guidence and light.
Is Muhammad a prophet of God and his Qu'ran the word of God?
According to the Qu'ran Muhammad is a prophet of God and meets with the angel Gabriel and receives revelation from him. The god Allah is supposed to be the God of Abraham.
Can any of this be true?
The God of Abraham has directed his people to test a spirit and a prophet of God to be sure they were not false prophets.
Did Muhammad test this spirit to be sure it was from God?
According to the Qu'ran Muhammad was instructed by Gabriel that if he had any doubts about this revelation he should speak with those who read previous scriptures.
This would surely mean that the scriptures from God agree with the Qu'ran at this time of Muhammad.
The Bible says they absolutely have to be in agreement with the word of God and the previous prophets of God.
Now let's see what Muhammad would have found had he had done as instructed both by God and by this unproved spirit.
Deut.13: 1 If there arise among you a prophet, or a dreamer of dreams, and giveth thee a sign or a wonder,
2 And the sign or the wonder come to pass, whereof he spake unto thee, saying, Let us go after other gods, which thou hast not known, and let us serve them;
3 Thou shalt not hearken unto the words of that prophet, or that dreamer of dreams: for the LORD your God proveth you, to know whether ye love the LORD your God with all your heart and with all your soul.
A prophet of God must be in agreement with the words of the prophets and the known word of God.
1John 2: 22 Who is a liar but he that denieth that Jesus is the Christ? He is antichrist, that denieth the Father and the Son.
23 Whosoever denieth the Son, the same hath not the Father: [but] he that acknowledgeth the Son hath the Father also.
24 Let that therefore abide in you, which ye have heard from the beginning. If that which ye have heard from the beginning shall remain in you, ye also shall continue in the Son, and in the Father.
1John 4:1 Beloved, believe not every spirit, but try the spirits whether they are of God: because many false prophets are gone out into the world.
2 Hereby know ye the Spirit of God: Every spirit that confesseth that Jesus Christ is come in the flesh is of God:
3 And every spirit that confesseth not that Jesus Christ is come in the flesh is not of God: and this is that spirit of antichrist, whereof ye have heard that it should come; and even now already is it in the world.
4 Ye are of God, little children, and have overcome them: because greater is he that is in you, than he that is in the world.
5 They are of the world: therefore speak they of the world, and the world heareth them.
6 We are of God: he that knoweth God heareth us; he that is not of God heareth not us. Hereby know we the spirit of truth, and the spirit of error.
7 Beloved, let us love one another: for love is of God; and every one that loveth is born of God, and knoweth God.
8 He that loveth not knoweth not God; for God is love.
9 In this was manifested the love of God toward us, because that God sent his only begotten Son into the world, that we might live through him.
10 Herein is love, not that we loved God, but that he loved us, and sent his Son to be the propitiation for our sins.
11 Beloved, if God so loved us, we ought also to love one another.
12 No man hath seen God at any time. If we love one another, God dwelleth in us, and his love is perfected in us.
13 Hereby know we that we dwell in him, and he in us, because he hath given us of his Spirit.
14 And we have seen and do testify that the Father sent the Son to be the Saviour of the world.
15 Whosoever shall confess that Jesus is the Son of God, God dwelleth in him, and he in God.
Anyone who claims to be a prophet of God must agree Jesus is the Christ the Son of God who is our Savior.
2 John 1:7 For many deceivers
are entered into the world, who confess not that Jesus Christ is come in the flesh. This is a deceiver and an antichrist
Gal. 1: 8 But though we, or an angel from heaven, preach any other gospel unto you than that which we have preached unto you, let him be accursed.
If an angel or a man preach a different gospel he is not of God.
Should I continue?
We can see here that the supposed imposter spirit Gabriel contrary to what he siad was not a spirit from God and the revelation he was sharing was not in agreement with the word of God.
We can also see by these scriptures Muhammad was not in agreement with the previous word of God nor the prophets and could not be a prophet of God.
What would be Islam's answer to such a glaring problem?
You and I both know the answer to this question.
Islam contradicts the Qu'ran and calls the word of God corrupt.
If this were true and it is impossible you have a myriad of problems.
1) How to test a prophet or a spirit with corrupt scriptures.
Not only Muhamamd could be a prophet but so could anyone in the world simply write yourself a book and call the word of God garbage.
2)The Qu'ran itself says the word of God can't be changed and that the Qu'ran is a continuation of these previous scriptures and advises Muhammad to check with those who read previous scriptures.
Muhamamd even according to the Qu'ran could not be a prophet of God nor the Qu'ran the word of God.
3) Could Allah be the God of Abraham as he claims?
Is Allah in agreement with the righteousness of God?
From the beginning of the Torah, God warns Adam to eat of the tree of knowledge of good and evil or he will surely die.
Satan, called the serpent, lies and tells Eve you will not surely die.
God does not weigh sin. The wages of sin is death from the beginning of the word of God to the end of his written word.
God could not change his mind and agree with Satan.
It is the reason man needs Jesus and the reason the Son became flesh.
What was the first lie Satan gave to man? You will not surely die. God is not a righteous God and you can make another deal
My Muslim friend Satan is again telling the original lie.
Sin does equal death there are no lessers sins and God does not weigh sin and you can't earn salvation.
Salvation is a free gift no man can require it from God.
God is a righteous God and he will not be joined to sin.
God has provided a way for his people to be rejoined to him for eternal life and this is through the Son who became flesh.
The Son became flesh because sin does equal death.
Look around you my friend all men sin and all men die.
The Son came to the world to overcome temptation as a man under law.
Jesus remained perfect even the Qu'ran says he is perfect.
Overcoming temptation, sin and death for all who accept the atonement he provides them.
Should I continue?
Thus far it should be obvious.
1) Muhamamd could not be a prophet of God
2) Allah could not be the righteous God of Abraham.
3) The Qu'ran could not be the true word of God.