Combating Islam

Islam vs. Islam: When the Qur’an Refutes the Theologians

“A house divided against itself cannot stand.” — Jesus (Mark 3:25)
“Do they not ponder the Qur’an? Had it been from other than Allah, they would have found within it much contradiction.” — Qur’an 4:82

Islam claims to be a religion built upon the eternal, unchanging word of God — the Qur’an. It also claims that its theology, doctrines, and legal codes developed over centuries are the natural, organic outgrowth of that divine text. But what happens when the Qur’an directly contradicts the very theology that claims to arise from it?

You get Islam vs. Islam — a system at war with its own foundations.

🔍 Case Study: The Injil (Gospel) and the Law of Identity

Let’s begin with a theological flashpoint: the Injil, or Gospel.

Islam teaches that Jesus (Isa) was given a revelation from Allah called the Injil. But when challenged about why Muslims reject the New Testament — especially the Gospels Christians already possessed in the 7th century — Muslim apologists invoke the doctrine of tahrif: the idea that the text was corrupted.

Yet, a careful reading of the Qur’an itself obliterates this position. The Qur’an not only never says the Injil was corrupted — it explicitly affirms it as intact, valid, and in the hands of Christians during Muhammad’s time.

Let’s break it down.

📜 What the Qur’an Actually Says

➤ Surah 5:46

“And We sent, following in their footsteps, Jesus, the son of Mary, confirming that which came before him in the Torah. And We gave him the Gospel, in which was guidance and light...”

The Injil was a divine revelation.
It contained guidance and light — not corruption, distortion, or loss.

➤ Surah 5:47

“Let the People of the Gospel judge by what Allah has revealed therein. And whoever does not judge by what Allah has revealed — then it is those who are defiantly disobedient.”

Christians in the 7th century are commanded by Allah to judge by the Injil.
This makes no sense if their Injil was corrupted or lost.
Would a just God command people to follow a falsified book?

➤ Surah 7:157

“[Those] who follow the Messenger, the unlettered Prophet, whom they find written [about] in what they have of the Torah and the Gospel...”

The Qur’an says Muhammad is found in the Gospel they had.
Not a lost or theoretical Gospel — but one in their possession.
The Qur’an doesn’t say: “They used to have it” or “They corrupted it” — it treats their text as valid.

🧠 Apply the Law of Identity

“A thing is what it is. It cannot be what it is not.”

This is the Law of Identity, a foundational law of logic. Let’s apply it:

The Qur’an refers to the Christians’ scripture as the Injil.
It says it was given to Jesus, contains guidance and light, and is to be judged by.
It never calls it “fake Injil,” “forged Injil,” or “pseudo-Injil.”

Therefore:

✅ The thing Allah calls “Injil” is, by identity, the same Injil that Jesus received and the Christians possessed.

❌ The later Islamic claim that the Injil was lost, altered, or replaced violates the Law of Identity and introduces contradiction.

❗ The Later Islamic Argument Implodes

The Orthodox Claim:

The original Injil was corrupted or lost.
The Gospels Christians had were not the real Injil.
Allah sent the Qur’an to correct the previous revelations.

The Qur’anic Problem:

There is no verse in the Qur’an that says the Injil was corrupted.
The Qur’an commands judgment by the Injil.
The Qur’an says no one can alter Allah’s words:

“And the word of your Lord has been fulfilled in truth and in justice. None can alter His words.” — Surah 6:115

How can Allah’s revelation be altered, if Allah Himself says no one can alter His words?

Either:

Allah is wrong,
or later Islamic theologians are.

🧱 Theology Built on Sand: Enter Tahrif

The doctrine of tahrif al-nass — textual corruption — does not come from the Qur’an. It comes from later tafsir (commentary) and theological desperation.

Muslim scholars realized that the Gospel Christians possessed didn’t match the Islamic Jesus — so they retrofitted a doctrine to explain it away. But it’s a band-aid theology:

It contradicts the Qur’an.
It contradicts logic.
It contradicts Allah’s justice — commanding people to follow a falsified book?

It’s not just bad theology. It’s intellectually dishonest.

🧨 The Internal Collapse: Islam vs. Islam

This is the Qur’an refuting the theologians.
The foundations of the house undermine the walls.

Qur’an	Later Islamic Theology
The Injil is valid and uncorrupted	The Injil was lost or corrupted
Christians are commanded to judge by it	Christians have no authentic Injil
Allah’s words cannot be altered	Allah’s revelations were altered
Muhammad is found in their Gospel	Their Gospel is fabricated

The contradiction is not external. It is internal.

Islam vs. Islam. Qur’an vs. Tafsir. Revelation vs. Religion.

🔚 Final Verdict

📌 The Qur’an never accuses the Injil of being textually corrupted.
📌 It affirms the Gospels Christians had in the 7th century.
📌 It calls those texts “guidance” and “light.”
📌 It says Muhammad was prophesied in those texts.
📌 It commands Christians to judge by them.
📌 It declares Allah’s words unchangeable.

Later Islamic theology contradicts every single one of these Qur’anic affirmations.

So what do we call a religion whose theology contradicts its scripture?

We call it false.