The Grandverbalizer19,here, and other places at his aggressive blog, thinks he has refuted Christianity. The late Ahmad Deedat, and Shabir Ally and other Muslim debaters, think they have refuted Christianity. (see also Dr. White's debate with Shabir Ally on the NT; and the cross debate)
Muslim apologetics can never refute the truth of the Bible. The truth of the Bible is what refutes the Qur’an, since the Qur’an came 600 years later and is not inspired by God at all. Whatever good is in the Qur’an is stolen from the previous Scriptures, the OT and the NT. Most of the truths of the Scriptures that are talked about in the Qur’an have been changed in many ways. It is the Qur’an that “corrupted” the message of the Bible. Muhammad did not know the details of the Bible, but he thought he did; by hearing about it orally (mostly from heretics and nominal "Christians")and some others seemed to have redacted his original material. The Qur’an affirms the Bible, especially in 5:46-48 and 5:68 and 10:94 and 2:136 and 29:46 and other places, because the writers and compilers of the Qur’an thought the previous Scriptures were perfect and unchangeable without even knowing what it was all about and did not know the contents of it. “No one can change the words of Allah” is said many times in the Qur’an, which I showed here:
No one can change the words of God
The Grandverbalizer19, a Muslim, wrote: (at David Waltz' combox at this post, here.
“Any Christian who thinks that the Qur'an settles the intra-Christian dispute on "NT" canon if it was 22 or 27 books or the intra-Christian dispute on the "OT" canon if it was 37 or 46 books is simply dishonest.”
I never stated that the Qur’an settles the canon issue for Christians, so you are the one who is being dishonest now, if you think I have ever claimed that the Qur’an settles the canon issue, either OT or NT. The canon issue was settled long before the Qur’an came along. The 27 books of the NT were "canon" (meaning "standard", "criterion", "rule", "principle", "law", "measuring rod") as soon as they were written, between 48-96 AD.
Recommended: On the canon and Sola Scriptura and On Sola Scriptura and the Early church fathers
That there was a historical process of collecting all of them under one cover for all the churches is not disputed. Origen quoted all the NT books as Scripture, the same 27, written around 240 AD. Origen died about 253/254 AD. Athanasius wrote them all in a list in 367 AD. You throwing out the issue of “NT 22 vs. 27 books” is a red herring and has nothing to do with the issue of here at all. The Muratorian Canon, a fragment, dated around 160- 170 AD, attests to the undisputed 20 books plus Jude, Revelation, and probably 2 John. That it is a fragment explains why some other books are not mentioned.
Here is a good article on the 27 book of the NT issue:
27 book NT before Athanasius
Muslims need to digest all of these excellent articles to get a proper handle on the canon and church history and what led to the Reformation:
historical roots of the Reformation
Even so, if we take the 20 NT books (all four gospels, Acts, all of Paul’s epistles, 1 Peter, I John) that were universally agreed upon by the churches in the Christian world by 200 -250 AD, they still all take down Islam as a false religion, since they all affirm all the doctrines that make Christianity true and show Islam to be false. All 27 books of the NT were written from 48-96 AD, and most of them by 70 AD, and so they were in existence separately, in different places, but it took a while for all the churches to get them all under one “book cover”, because of the persecution, and the nature of how they were written (individually, at different times, at different locations).
Here I am assuming the Grandverbalizer19 means what Origen and Eusebius and other early church fathers called the 5-7 “disputed” books – (Revelation, Hebrews, 2 Peter, James, Jude, 2-3 John) – “disputed” just means that some parts of the Christian world questioned them and were not sure. But other parts of the Christian world exhibit evidence of knowing about the rest of these books, although no one church or area or writer mentions all the books at one time until Origen and Athanasius. Some of these "diputed" books are clearly used by some early church writers – for example Irenaeus alludes to or quotes from every NT book except Philemon, 2 Peter, 3 John, and James. He alludes to a lot of material from Revelation and he is writing between 180-200 AD. Tertullian, also around 200 AD, also quotes from all the NT books except for Philemon, 2 Peter, 2-3 John, and James. I Clement, written in 96 AD, quotes extensively from Hebrews and quotes from James also. The “Epistle of Barnabas”, written somewhere between 70 and 132 AD, cites 2 Peter 3:8.
The important thing to remember is that all the NT books were written separately to different places, from different places and by different authors. The fact that the Early Church was under persecution and on the run, and that the Romans burned many of the earliest copies explains why did not have time to collect all of the 27 books under one cover in all the places until after the persecution died down.
Christianity grew under persecution; Islam did not; Islam used the power of the sword to force the Arabians to submit. Then the Byzantine Empire to the North and West of Arabia, the Persian Empire to the east of Arabia, and N. Africa were all conquered by aggressive, unjust, evil wars. And Islam used the power of the sword to burn almost all other copies under Uthman and create the text of the Quran, which is the basic one for the Qur’an today. Islam used the power of the state, politics, force, Sharia law, military power, and taxation to subjugate and subdue its enemies, and created its text. Christian history is more honest with its textual variants. The average Muslim denies that there are any variants in the Qur’an, yet there are, as some Muslim scholars admit.
“Any Christian who thinks the Qur'an confirms Mark 16:9-20, and John 8:1-11 (both accepted as canon at the time of Qur'anic revelation) is sleeping at the wheel.
As I told you before, Mark chapter 15 and 16:1-8 takes down Islam also, as it testifies to the details of the crucifixion, death, and burial of Jesus, and the endings of Matthew, Luke, John, and beginning of Acts supply us with all the “God-breathed” details of the resurrection and great commission and ascension of Jesus, so not having Mark 16:9-20 does no damage at all to the Christian message. Lacking John 8 also does no damage to the Gospel of the Messiah, His mission, His death, burial, resurrection, and ascension, and so it is you my friend who are “sleeping at the wheel”.
Therefore, it does not matter if some churches questioned a few of the NT books, or that Mark 16:9-20 or John 8:1-11 is not in the earliest manuscripts. Even without those, the gospel of Jesus as Son of God, God the Son, the Deity of Christ, the Trinity, the substitutionary sacrifice of the innocent lamb of God for the sins of humans from all the nations (Rev. 5:9; Mark 10:45; John 1:29); the resurrection of Christ from the dead; justification by faith alone, salvation by grace alone; the inherent sinfulness and blindness and deadness of all humans; ie, the doctrines of the “gospel” are all there in the undisputed NT texts, the gospel, which the Qur’an affirms (2:136; 5:46-48; 5:68; 10:94) still stand after you try to cast doubt on the NT by throwing out red herrings.