1Jn 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.
Sura 19:88 They say: "(Allah) Most Gracious has begotten a son!" 89 Indeed ye have put forth a thing most monstrous!
Consider the blasphemous Islamic Mosque, the Dome of the Rock with it's mosaic declarations of "God is only One God. Far be it removed from His transcendent majesty that He should have a son." and "God, Who hath not taken unto Himself a son".
That is, of course, the exact opposite of what the Gospel teaches through hundreds of verses that confirm Jesus is the Son of God and God His Father, such as....
John 3:16 For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life.
When a Muslim confesses that Jesus Christ is the Son of God he has committed the most egregious, and only unpardonable, sin in Muhammad's stand-alone 7th century religion.
1John 4:15 Whosoever shall confess that Jesus is the Son of God, God dwelleth in him, and he in God.
Confessing that Jesus is the Son of God transgresses the single most important element in Islam and is known as "shirk", but by Christians is identified as coming from the spirit of antichrist.
1 John 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].
Since the most important fundamental in Islam is "shirk" - that God has no Son - it would seem undeniable that islam is an antichrist belief system.
Surah 4:157 That they said (in boast), "We killed Christ Jesus the son of Mary, the Messenger of Allah";- but they killed him not, nor crucified him, but so it was made to appear to them, and those who differ therein are full of doubts, with no (certain) knowledge, but only conjecture to follow, for of a surety they killed him not:-
Through the verse above it should be crystal clear to all that Islam is the exact opposite of Christianity. This single verse from the Quran rejects all of the prophets and witnesses of the New Testament - including Jesus Christ who prophesied His own death - and the whole subject of the new covenant. No crucifixion, death and resurrection. No shed blood. In spite of the massive, even secular, historical record of the crucifixion of Jesus Christ. Throughout the last two thousand years not a single Christian has ever had a doubt about Jesus' crucifixion. If one did they simply wouldn't be a Christian! Nor is there a single mainstream Jewish sect that harbors any doubt about Jesus being killed.
Mohammed's religion is unique among other religions, in that at it's very core it teaches it's adherents what to DISbelieve. That's 1.5 billion people filled with complete resolve as to what to DISbelieve. If you ask a muslim who did die on the cross, you will get almost as many answers as folks that you ask. In other words we find them "... full of doubts, with no (certain) knowledge, but only conjecture to follow..." just as Mohammed described Christians and Jews, who harbor no doubts at all! Thus Islam emerges as the only anti-another-religion, religion, by design, and the only religion that teaches specifically against another faith. Islam is to Christianity as the negative is to a photograph. Islam is the antithesis of the Gospel.
Surah 9.29 Fight those who believe not in Allah nor the Last Day, nor hold that forbidden which hath been forbidden by Allah and His Messenger, nor acknowledge the religion of Truth, (even if they are) of the People of the Book, until they pay the Jizya with willing submission, and feel themselves subdued. 30 The Jews call 'Uzair a son of Allah, and the Christians call Christ the son of Allah. That is a saying from their mouth; (in this) they but imitate what the unbelievers of old used to say. Allah's curse be on them: how they are deluded away from the Truth!
Mohammed even ordering up his "Allah's" curse on YHWH's people while instructing his followers to fight us.
Is Islam evil? Sure it is! So what do we do? As Christians we should love the muslims and share the truth of the Gospel with them. Don’t use what was said as an excuse to hate islam. View it as a wake up call to love our enemy and share the Gospel with those trapped in an antichrist belief system..