Has the Gospel been completely distorted, or has distortion only affected parts of it?

The current Injeel (Gospel) is not free from additions, deletions, and alterations. The truth within it has been mixed with falsehood, and it cannot be distinguished except by referring to the preserved Sharia (Islamic law). The Quran abrogates and supersedes previous scriptures, and there is no need for a Muslim to look into the Injeel. Allah Almighty has testified against the People of the Book regarding the distortion and alteration of the scriptures in their possession.