A comparison of the Messenger, Message, & Mission
of the Qur’an & the Bible




October 14, 2019

Your book is the finest and most thorough analysis I have ever seen of the teachings of the Quran in comparison to the Bible. It is a treasure trove of biblical truth, theological insight, and practical application. 

My granddaughter is using it in her Global Studies class on Islam this very semester. I think a college-level text book version would be very helpful. 

Dr. Ed Hindson
Founding Dean | Distinguished Professor of Religion
John W. Rawlings School of Divinity
Liberty University, Lynchburg, VA 


It is calculated that in the year 2050, the continent of Europe will become an Islamic continent, just by the means of birth rate of the Muslim families immigrated to Europe in the past few decades. Why is Islam, an antichrist religion growing so rapidly in a continent that used to proclaim the Gospel of Jesus Christ from every corner? It is simply because the light of the Gospel has dimed and the church is no longer a Pillar of the truth.

Dr. Gauss, in this profound study, is upholding the truth of the Gospel, revealing the fallacies of a false religion. His pen is sharp but the imprint of his spirit is marked with compassion and love for a lost people who believe they are worshipping the one true God. 

I commend Dr. Gauss on writing such an informative book bringing out the darkness that covers every page of the Quran and delusions of the Islamic faith. 

May there be more voices such as Dr. Gauss proclaiming the truth of God with boldness and in the spirit of Christ. And may we witness freedom for millions of Muslims who are bound by a dark and evil force!

Blow the trumpet in Zion; sound the alarm on my holy hill. Let all who live in the land tremble....

Pastor Reza Safa

(Former Iranian Shi’a Muslim)

President, TBN Nejat TV

Director, TBN Middle East

Author of Inside Islam: Exposing and reaching the world of Islam

“In an age when the moral equivalence of Islam and Christianity is a dogma that must not be questioned and forms a non-negotiable prerequisite for the public debate, Islam and Christianity comes as a detailed exposition of why they are not equivalent, and why the devout adherents of each may behave in such very different ways. Christians will find this book an enlightening and energizing response to the Islamic jihadists’ civilizational challenge.”

-Robert Spencer, author of the New York Times bestsellers

The Politically Incorrect Guide to Islam (and the Crusades) and

The Truth About Muhammad

“This book is an important read for Americans regardless of their religious beliefs. As James Gauss explains, the threat from Islam is based on a 1400 year old theology which Gauss outlines in the most understandable terms of any book I have read on the subject. The book debunks many of the myths about Islam that have created confusion for Americans in general and for Christians specifically. I will use this book as a reference for dialogue on the subject of Islam. I highly recommend this to all.”

- Lt. General Jerry Boykin (U.S. Army Ret.)

“Islam & Christianity is a trumpet blast of warning to the West about the imminent spiritual and geo-political threat of Islam.  A classic in-depth study of the contrasts between Christianity and Islam, this monumental work is required reading for anyone wanting to understand the greatest struggle for the souls of men in the 21st Century.” 

- Rev. Peter Marshall (deceased)

Peter Marshall Ministries

“. . . the premier, universal authority on Islam today.

“This is now the book on Islam!  Unlike other books on the topic, it shines a blazing spotlight on the true nature of Islam by comparing it with Christianity point by point by point.  It doesn’t just discuss Islam and then leave you to try to piece together the comparisons.  Probably every question you ever had about Muslim beliefs, history, attitudes, and actions is answered in Islam & Christianity―concisely, without wasting a word.  You’ll find it difficult to put down this solid, even-handed book.  And I doubt that any thinking person could remain a Muslim after reading the real story here.”

- James Rutz (deceased)

author, Megashift

President, Megashift Ministries

Chairman, Open Church Ministries

“Islam and Christianity provides a very thorough theological comparison of Christianity and Islam.  Dr. Gauss goes into great detail relating the beginning of Islam, its writings and beliefs, in sharp contrast to the Bible and Christianity.  For someone who loves theology, has contact with Muslims and would like to be able to intelligently discuss the difference in beliefs, this would be a great resource.”

- Tom White, Executive Director (deceased)

The Voice of the Martyrs


“In every generation, satan raises forces to combat the truth of God and His eternal Word.  These forces of darkness are framed within a religion, a philosophy, an ideology, or a political movement.   The most forceful of them all is religion.  If a religion does not touch the Gospel, its purpose is only the damnation of its adherents.  But when religion contradicts the Gospel and also claims superiority over it, then we have an anti-Christ force.   Islam is precisely this, an anti-Christ spiritual force. 


“The church does not have a pretty history in its combat against Islam.  Turkey, Syria, Spain, and Albania are some of the examples of our defeat.  These nations were the center of Christendom.  What happened then is currently taking place in Great Britain, Europe, and the United States of America.  The church became self-centered, indulging in a worldly life, and losing its love for the truth.   Consequently, in such spiritual conditions, there will be only a remnant of voices crying out on the roof tops the truth of one true God.   These faint voices are men and women who love their God and love the souls of men.   They refuse to remain in the status-quo.   They are men and women of great conviction.

“Dr. Jim Gauss is one of these voices, raising up a banner against the lies and deceptions of Islam.  For a non Muslim to write accurately about Islam takes a lot of research and much study.   I commend Dr. Gauss for his accurate description of Islam and his great love for the Muslim people.  May this book become an arrow in the heart of Islam, exposing the darkness of this evil religion, and may it open doors of freedom to one fifth of the world’s population.”

Pastor Reza Safa,

A former radical Muslim

Author of Inside Islam

“Islam and Christianity: A Revealing Contrast”, by James F. Gauss, Ph.D. is a side-by-side comparison between the two religions. Doctor Gauss writes from a Christian perspective. He has obviously made a life-long study of the Bible and has used this background as a means for investigating the Koran. He delves deep into claims that are made by modern adherents of Islam as well as elements in the press, especially regarding its pacific nature.

“The book explores areas of the Koran and other Muslim texts about which readers in the West often hear, but never get any cogent analysis. For example Gauss explains the infamous “Satanic Verses” when Mohammed said it was permissible to pray to certain pagan gods in intercession with Allah. Then he reversed himself a short time later saying he had been told to allow the pagan gods by Satan.

“Muslim treatment of women is also discussed. It is important to note that in Muslim teaching, women have a second class status. In Muslim texts women are depicted as being less intelligent, and almost chattel for men. Women are not even allowed in a mosque, where they are considered to be a distraction.

“Interestingly, the Muslim religion is a successor to the Jewish and Muslim [sic, Christian] religions. Muslims see themselves as descended from Abraham through his son Ishmael. They believe Ishmael was the legitimate heir of God’s covenant. Mohammed is considered the last in a long line of prophets which included Jesus. Many of the sayings of Mohammed are filled with talk about Jesus, Mary, and other familiar biblical figures.

As Islam and Christianity is written from a Christian perspective, Christian readers will find it most interesting. Even so, readers who do not consider themselves Christian will find the book informative on many levels. Theologically, sociologically, and practically, Islam and Christianity are compared and analyzed. Dr. Gauss writes in an engaging and convincing style. He has considerable command of the subject matter. His arguments are clear concise and intelligent.

Ultimately, Dr. Gauss presents fanatical Islam as an aggressive force that must be confronted. In the closing chapters he presents practical things that Christians can do. Islam and Christianity is an excellent work for anyone who wants to learn more about Mohammed, the Koran, and Islam, as they relate to current events in the world at large.

W. J. Rayment

Bible Study Resource Center

Conservative Bookstore-