This reference set centers on a sustained Christian-Muslim debate over the Islamic dilemma, especially whether the Quran confirms, preserves, and authorizes the Torah and Gospel while also differing from them. Most citations come from the Quran, with smaller clusters from the Bible, hadith, and a few later interpretive appeals.

Main themes

The largest theme is Torah and Gospel Corruption, especially whether the Quran treats earlier scriptures as textually preserved or only partially reliable.
A second major theme is Islamic Theology, where both sides debate legal authority, abrogation, jizya, and whether Jews and Christians remain bound by their own laws or by Muhammad's revelation.
Another repeated theme is Muhammad in the Bible / Muhammad's Prophethood, with multiple Quran passages and later appeals used to argue that earlier scripture should identify Muhammad.
A recurring Christological theme is Jesus' Divinity and Sonship, especially around whether Quranic teaching conflicts with biblical claims about divine sonship and Jesus' status.

Source types used

Quran: the dominant source type, especially Surah 2, 3, 5, 9, 10, 16, 19, 21, 28, 29, and 57.
Bible: used mainly as counterexamples or theological contrasts, including Mark, John, Matthew, Deuteronomy, and Isaiah.
Hadith: used more selectively for disputes about the Torah, jizya, and how earlier scripture should be treated.

Notable patterns

Several Quran references are repeated multiple times, especially Quran 2:85, Quran 3:81, Quran 5:48, and Quran 10:94, showing they were central proof texts for both sides.
The Christian side repeatedly frames earlier scripture as the standard by which the Quran must be judged.
The Muslim side repeatedly uses legal and abrogation examples to argue that confirmation does not require full continuing legal authority.
The exchange often shifts from preservation claims into arguments about authority, then back into broader questions of prophethood, corruption, and revelation.