How did Moses write in the Bible?

Answer 1

A: Moses is traditionally said to have written the first five books of The Bible (the Books of Genesis, Exodus, Leviticus, Numbers and Deuteronomy). There is no actual evidence in these books that Moses did write them, but it is generally recognised by conservative Christians and Jews alike that only Moses could have known much of what is contained in those books, and that later authorship would be evidence of potential unreliability.

Some say that Moses was able to write about his own death because God told him how he would die, even before it happened. Some others say that Joshua wrote the passages that refer to Moses' death. Others say that, whether or not Moses was a real, historical character, the evidence is that the books were actually written by multiple authors long after the time attributed to Moses. What is well established by linguistic experts is that no one living at the time of Moses could have written in the Hebrew language, as this language only evolved from a dialect of Canaanite late in the tenth century BCE.

Answer 2

See:

Refuting the multiple-authors Hypothesis

The authorship of the Hebrew Bible

Tradition states that Moses wrote a scroll containing the narratives of Genesis, at God's command, before the formal Giving of the Torah (Rashi commentary, Exodus ch.24). This was written in ink on parchment. It was this scroll which he read to the Israelites (Exodus 24:7) as an introduction to what God's covenant would entail. This was not a surprise to the Israelites, since they had carefully handed down the narratives and events of the lives of Abraham, Isaac, and Jacob (see Midrash, Shemot Rabbah 5:18 and 22).
The words of this scroll were soon incorporated in the complete Torah itself by God, including the ancient traditions of the Creation, the Flood etc. (These traditions had been known by mankind worldwide, except that among the other nations [the idolaters] they had become garbled with idolatrous drivel.)
When God gave the Ten Commandments (Exodus ch.19-20), He gave them in writing, inscribed on stone tablets (Exodus 31:18), while He taught the rest of the Torah to Moses orally, on Mount Sinai (Exodus 24:12), without writing it.
At God's command and precise dictation (Deuteronomy 1:3), Moses penned the entire Torah (Deuteronomy 31:24) immediately before his death, so that it included events that had happened in the preceding months (such as Numbers ch.20).

No Hebrew copy of the Torah has ever been found to differ with the others, worldwide. The Torah we possess today contains the exact wording written by Moses.See also:

What is the history of the Hebrew Bible?