This verse establishes a scholarly benchmark for the Quran's authenticity by appealing to the testimony of those already steeped in divine knowledge. It asserts that the revelation is self-evidently true to anyone intimately familiar with the prophetic tradition and the previous scriptures.
Surah 34:6:
Those who have been given knowledge see that what is revealed unto thee from thy Lord is the truth and guideth unto the path of the Mighty, the Owner of Praise.
The Quran points to those "given knowledge" (Christians/Jews) as the ones who can verify its truth.
If the Bible was already corrupted by the 7th century, then the "knowledge" held by these people was actually "error."
God would not point to people filled with "error" or "shirk" to verify His final "Truth." By using them as witnesses, the Quran is certifying that the 7th-century Bible provided a valid, uncorrupted foundation for recognizing divine revelation.
The verse claims that those with knowledge "see" that the Quran is the truth.
Recognition requires a match. If an expert in the "knowledge" of the Prophets (the Bible) looks at the Quran and sees that it denies the Crucifixion, the Atonement, and the Sonship of Christ, they do not see it as the truth—they see it as a contradiction.
Since the vast majority of the "knowledgeable" People of the Book rejected the Quran based on their scriptures, the Quran has failed its own verification test.
The verse says the Quran "guides to the path" of the Praiseworthy God.
If the "Path" in the Bible (the "knowledge") leads to salvation through the Lamb of God, and the Quranic "Path" leads away from it, then they are two different paths.
A person "given knowledge" of the first path will see that the second path is a departure, making the Quran’s claim in 34:6 a self-refutation.
Surah 34:6 claims that those 'given knowledge' (the People of the Book) see that the Quran is the truth.
I am a student of that 'knowledge'—the Torah and the Gospel. When I compare them to the Quran, I don't see a 'match'; I see a denial of the core promises of the Prophets.
If you say my 'knowledge' is from a corrupted book, then you are calling your own Quran a liar for pointing to me and my book as the standard for truth.
Why would God tell you to look at my recognition as proof, if my recognition tells me the Quran is wrong?
Either my 'knowledge' (the Bible) is the true standard—which proves the Quran is wrong—or the Bible is corrupted, which proves Surah 34:6 is a failed test.
Which will you choose: a reliable Bible or a Quran that makes false claims about what the 'knowledgeable' see?