Can The Quran Affirm The Bible Without Contradicting Itself?

There are two basic ways to critique any belief system. You can critique it externally, by judging it according to standards it doesn’t accept, or you can judge it internally, by judging it according to standards it does accept.

Therefore, an external critique of Islam will judge it according to standards that come from outside its own sources, whether philosophical, historical, or theological, whereas an internal critique will begin from the Quran itself and ask whether Islam can stand on its own terms.