Across the history, God revealed His divine Message to His messengers from Adam to Prophet Muhammad.
However, the scriptures of the earlier messengers, such as Noah and Abraham, were completely lost. Currently, we have three divine books: the Torah, the Bible and the Quran.
If they were truly revealed by God, then it is reasonable to believe there is a link between these three books because they were sent by one God.
In addition, it is logical to ask: Why do we have three books? Why are they not combined in one book that contains God's Message to humanity?
Were any parts of these divine books partially or completely lost over history?
What about alterations, additions or changes to the pure Message of God?
Were any of these things possible to happen during the last 3000 years?
The answer may surprise many readers when we look at the history of writing and assembling the Torah, the Bible and the Quran.
THE STRUCTURE OF THE HEBREW BIBLE
The current Jewish Bible, or "Tanakh," is composed of three main groups of books: "Torah", "Prophets", and "Writings".
The Torah contains the laws of God that were revealed to Moses and recorded in the first five books of the Hebrew scriptures (called the Pentateuch, literally meaning "five scrolls").
It also includes the covenant that binds the Jewish people to God. Although many scholars agree that the five scrolls were initiated by Moses, they believe the Torah could not have been written by a single person – because of differences in style, language and some contradictions in the text.
The second part of the Jewish bible called "Prophets" includes books from Joshua through Malachi.
The third and last part "Writings" includes books from Psalms through Chronicles. They are of later origin and are most varied, containing works of poetry, "wisdom literature," as well as some historical material.
The order of the Christian "Old Testament" follows a different logic. For example the book of Ruth, although written much later, comes right after Judges, since the events it describes take place during the same period. But the most significant change is in how the books are ordered at the end.