1. Is it accepted that the Word of God is eternal and unchangeable? (Lev-i Mahfuz)
the Bible Yes
Yes the Quran
the Bible's Perspective
Matthew 5:18For most certainly, I tell you, until heaven and earth pass away, not even one smallest letter or one tiny pen stroke shall in any way pass away from the law, until all things are accomplished.
Isaiah 40:8The grass withers, the flower fades; but the word of our God stands forever.”
John 1:1In the beginning was the Word, and the Word was with God, and the Word was God.
1 Peter 1:23having been born again, not of corruptible seed, but of incorruptible, through the word of God, which lives and remains forever.
the Quran's Perspective
Yunus (Jonah) 10:64For them are good tidings in the worldly life and in the Hereafter. No change is there in the words of Allah. That is what is the great attainment.
Qaf (Qaf) 50:29The word will not be changed with Me, and never will I be unjust to the servants."
Notes
In Islamic history, there were two opposing views about this subject which Muslims had internal wars over. The Mu’tazelites said “No” to this question, and the Ash’arites said “Yes”. Most Muslims today would say “yes.”
More resources from Dan Wickwire at http://www.danwickwire.com/