🧠 The Law of Identity and the Injil: A Logical Rebuttal to Islamic Theology

One of the most devastating critiques of the later Islamic position on the Injil (Gospel) comes not from polemics or Christian doctrine — but from pure Qur’anic text and logic. At the center of this critique is the Law of Identity:

"A thing is what it is — it cannot be what it is not."

So let’s apply that directly to what the Qur’an says about the Injil.

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📜 What Is the Injil According to the Qur’an?

🔹 Surah 5:46 — "And We gave him (Jesus) the Gospel, in which was guidance and light..."

➡️ The Injil is a divine revelation given to Jesus directly. ➡️ It contains guidance and light — it is not portrayed as missing, corrupted, or altered.

🔹 Surah 5:47 — "Let the People of the Gospel judge by what Allah has revealed therein."

➡️ This is a direct command to 7th-century Christians to use the Injil they already had. ➡️ Allah would not command people to follow something corrupted.

🔹 Surah 7:157 — "...the unlettered Prophet, whom they find written about in the Torah and the Gospel that is with them..."

➡️ Muhammad is described as being found in the Gospel they had in their possession. ➡️ The Qur’an calls it the Gospel and affirms it as valid enough to contain true prophecy.

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🧠 Apply the Law of Identity

If Allah calls it the Injil, then it is the Injil.

• If the Qur’an wanted to say: “They have something called the Injil but it is not the real Injil,” it would have said so.

• But it doesn’t.

• Instead, it treats the Gospel in their possession as legitimate, authoritative, and revelatory.

So:

• The Injil was given to Jesus (5:46)

• The Christians had the Injil in Muhammad’s time (5:47, 7:157)

• Allah commands judgment by it (5:47)

• Allah affirms its content and prophecies (7:157)

• The Qur’an never says it was corrupted, lost, altered, or replaced

Therefore:

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

❌ The claim that what they had was not the real Injil violates the Law of Identity — and introduces contradiction.

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❗ Why This Destroys the Later Islamic Argument

Later Islamic theology claimed:

• The original Injil was lost, altered, or replaced.

• The Gospels Christians had were no longer reliable.

• Allah sent the Qur’an because the earlier revelations were corrupted.

But this claim:

1. Is never stated in the Qur’an — there’s no verse that says the Injil was corrupted or no longer existed.

2. Contradicts the Law of Identity — Allah would not affirm, name, and command judgment by something that is not what it is.

3. Contradicts Allah’s justice and truthfulness (Surah 6:115 — "None can alter His words.")

Thus, the later claim of corruption (tahrif al-nass) is logically incompatible with the Qur'an.

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🔚 Final Verdict

📌 The Qur’an never accuses the Injil of being textually corrupted. 📌 It calls the Gospel Christians had the Injil — the same divine revelation given to Jesus. 📌 Later theological claims contradict the Qur'an's own language and logic.

And by the Law of Identity:

"What Allah affirms as the Injil, is the Injil."

Anything else is a contradiction — and the Qur’an never contradicts itself.

🧠 That’s the logic. That’s the text. That’s the end of the argument.