Islam’s Great Prophet Muhammad’s highly-literate wife Khadiya’s sectarian Christian cousin Warakah Ibn Nawfal knew how to write in Hebrew, and probably knew at least how to read Greek. Consequently, the following points are very important. For they all bear upon the genesis and the inscripturation of Muhammad’s original Qur’an.
All the jots and tittles of the Old Testament are canonized by Jesus (Matthew 5:18). Paul canonized the sayings of Jesus (Luke 10:7 cf. First Timothy 5:18). Peter equated all the Epistles of Paul with the other Scriptures (Second Peter 1:21 & 3:15f). And Jesus, through John, warns us neither to subtract from nor to add to the then-finished Bible (Revelation 22:18-20).