Every religion has a marketing plan, they omitted those books for such purposes. The bible may be the word of God, but it was edited by man. Thank you for citing that profound fact.

Don;t hassle over this too much. The Hebrew Old Testament had the 39 books we all know (although they compressed some into one book eg 1 and 2 Kings etc)and then had a section which consisted of books written after the return from exile (when the Jewish people considered the canon closed). Yet they read these books for their historical value and morality. They have been called The Apocrypha (Hidden Books), but that is a misnomer because they were never hidden. When the first Protestant Bible was printed, Luther dropped these apocryphal books, as they had never truly been considered Scripture by the Jews, yet he never banned them, and they still got read from time to time, just not given the same importance as the other 39. In reaction to Protestantism, the Roman Catholic Council of Trent included them in the RC Bible, pronouncing them SCripture, although they called them Deuterocanonical (2nd rate scripture; even they acknowledged the inferior nature of the texts) In reality, it is nothing to fight over. There are a few doctrinal difficulties in some (prayers for the dead mentioned, although not commanded), but they are mostly harmless enough. Their teaching is generally much inferior in quality to the Old Testament Books, and their history is inaccurate, but let us not fight over it to the death. They still teach correct views of God (unlike the Gnostic works) and provide a good idea of the period leading up to the New Testament.

And why are the Ten Commandments different?

easy,the idiots cant read

At the time the Christian Bible was being formed, a Greek translation of Jewish Scripture, the Septuagint, was in common use and Christians adopted it as the Old Testament of the Christian Bible. However, around 100 A.D., Jewish rabbis revised their Scripture and established an official canon of Judaism which excluded some portions of the Greek Septuagint. The material excluded was a group of 15 late Jewish books, written during the period 170 B.C. to 70 A.D., that were not found in Hebrew versions of the Jewish Scripture. Christians did not follow the revisions of Judaism and continued to use the text of the Septuagint as the Old Testament. In the 1500s, Protestant leaders decided to organize the Old Testament material according to the official canon of Judaism rather than the Septuagint. They moved the Old Testament material which was not in the Jewish canon into a separate section of the Bible called the Apocrypha. So, Protestant Bibles then included all the same material as the earlier Bible, but it was divided into two sections: the Old Testament and the Apocrypha. Protestant Bibles included the Apocrypha until the mid 1800s, and the King James Version was originally published with the Apocrypha. However, the books of the Apocrypha were considered less important, and the Apocrypha was eventually dropped from most Protestant editions. Catholic and Orthodox Bibles The Roman Catholic and Orthodox Churches did not follow the Protestant revisions, and they continue to base their Old Testament on the Septuagint. The result is that these versions of the the Bible have more Old Testament books than most Protestant versions. Catholic Old Testaments include 1st and 2nd Maccabees, Baruch, Tobit, Judith, The Wisdom of Solomon, Sirach (Ecclesiasticus), additions to Esther, and the stories of Susanna and Bel and the Dragon which are included in Daniel. Orthodox Old Testaments include these plus 1st and 2nd Esdras, Prayer of Manasseh, Psalm 151 and 3rd Maccabees.