I want to address what is beginning to occur in the Church and why it must be rejected outright. It's becoming increasingly 'in vogue' to accept Islam in the Church. Consider a June 24, 2011 article from World Net Daily. "Dozens of churches, from Park Hill Congregational in Denver to Hillview United Methodist in Boise, Idaho, and First United Lutheran in San Francisco to St. Elizabeth's Episcopal Church in Honolulu, are planning to send 'a message both here at home and to the Arab and Muslim world about our respect for Islam' with a time to read the Quran during worship this Sunday." It has been labeled 'Chrislam', the attempt by some Christians to find common ground with Islam. One person said it was wrong. Another called it dangerous. God uses stronger words than that. Scripture itself declares 'Chrislam', the mixing of Christianity and Islam, to be a Spirit of Antichrist!
The Spirit of Antichrist was already prevalent during the time of the Apostle John. In fact, he was the one who had the most to say about this demonic influence. In 1 John 2:18, he said, "...you have heard that Antichrist shall come, even now are there many Antichrists; whereby we know it is the last time". Again, in 1 John 4:3, he said, "...this is that SPIRIT OF ANTICHRIST, whereof you have heard that it should come; and EVEN NOW ALREADY IS IT IN THE WORLD". The word 'Antichrist' simply means 'against Christ' or 'opposes Christ'. Anything that would be introduced into the Church that would subvert the finished work of the Cross, that is, distract, corrupt, or take away from who Jesus Christ is and what He accomplished at the Cross, is a Spirit of Antichrist. I am reminded of the words of the Apostle Paul, "Now the Spirit speaks expressly that in the latter times some shall depart from the Faith, giving heed to seducing spirits and doctrines of devils" (1 Timothy 4:1). The acceptance of Islamic practices into the Church by these and other ministers is giving way to seducing spirits and is teaching the doctrines of devils.
What I am about to show you are the characteristics that the Apostle John himself used to describe the Spirit of Antichrist:
1) The Spirit of Antichrist denies that Jesus is the Christ. In 1 John 2:22, it says, "Who is the liar but he who denies that Jesus is the Christ? He is Antichrist..." The word 'Christ' in the original Greek means 'Anointed One'. In other words, it is a declaration of Jesus as Messiah. Islam rejects that Jesus is the one and only true Messiah. They believe He was a prophet and maybe a type of Messiah, but not the Anointed One. If that's not enough, John goes further by calling them liars.
2) The Spirit of Antichrist denies that Jesus is the Son of God. In 1 John 2:22, the Apostle continues, "He is Antichrist, who denies the Father and the Son". Islam rejects that Jesus affirmed He was the Son of God. Furthermore, one well-known Bible teacher said that Muslims believe that the Mahdi is the future leader and that Jesus will return and follow the Mahdi to Jerusalem where He (Jesus) will deny He is the Son of God. Again, in this same verse, John said those who reject His Sonship were liars.
3) The Spirit of Antichrist does not confess that Jesus Christ has come in the flesh. In 1 John 4:3, again the Apostle states, "And every spirit that confesses not that Jesus Christ is come in the flesh is not of God: and this is that Spirit of Antichrist..." Did you catch that? Any spirit that rejects God as coming in the flesh is 'not of God'. If it didn't come from God, then it is a doctrine of devils according to the Apostle Paul himself, as stated earlier. Islam rejects that God came into this world in the flesh. This also tells us that the Christian God, who is Jesus Christ, is not the same as the Muslim god, Allah. It also proves that Allah is a false god.
Finally, the following are some of the last words the Apostle Peter would write before, according to tradition, he was crucified upside-down. "But there were false Prophets also among the people, even as there shall be false teachers among you, who privily shall bring in damnable heresies, even denying the Lord Who bought them, and bring upon themselves swift destruction" (2 Peter 2:1). For these Church leaders, who are blind watchmen, to bring Islam and the reading of the Quran into the Church is to deny the Lord himself, it is to deny who He is, and it is to deny what He accomplished at Calvary's Cross 2,000 years ago, when He gave His life for the sins of the world! Just as bad, it is an open acceptance of the Spirit of Antichrist, which John said will bring swift destruction and ultimately, yet sadly, the damning of the soul.
What should the Church do now? We must get back to proclaiming that Jesus Christ is the only way of salvation without fear of reprisal. We must defend and preach the deity of Jesus, that He is the one true God and there is no other. Then we must also boldly proclaim the Holy Scriptures, not the Quran, as the inspired and inerrant Word of God.
Everyone should be free to practice their religion in the way they choose. What this is about is defending the truth of who Jesus Christ is and what He accomplished at the Cross, and preserving the purity of the Church against the infiltration of false doctrine. The Early Church Fathers (e.g., St. Polycarp, St. Irenaeus) defended the Truth against heresy, so why don't we?