I cited Samuel Zwemer, the famous 20th century missionary to Muslims, in the recent Solid Ground article that Greg and I co-wrote about the Insider Movement. But I wanted to include the full quote here because he explains one of the main reasons why the Insider Movement can’t work: the chasm between Muslims and Christians is unbridgeable. Islam is an anti-Christian religion. Zwemer writes the following in his article, “The Chasm” in The Moslem World, published in 1919.
The yawning chasm between the devout Moslem and the devout Christian, between the orthodox Moslem and the orthodox Christian is a problem that faces every colporteur and Bible woman, every teacher and preacher. It is real and deep. The chasm cannot be bridged by rickety planks of compromise. Syncretism would be equivalent to surrender; for Islam thrives only by its denial of the authority of the Scriptures, the Deity of our Lord, the blessedness of the Holy Trinity, the cruciality and significance of the Cross, (nay, its very historicity) and the pre-eminence of Jesus Christ as King and Saviour. And this denial is accompanied by the assertion of the authority of another book, the Koran, the eclipse of Christ’s glory by another prophet, even Mohammed, and the substitution of another path to holiness and forgiveness than the way of the Cross. These denials and assertions are imbedded in the Koran and are the orthodox belief of ninety per cent of the people. On every one of these points the true Moslem stands arrayed in armor against the missionary and the Truth, of which he is the custodian and the preacher.