Scriptures are divinely inspired written records of God's messages to humanity. Such authoritative writings cannot be interpreted and applied by human intellect alone...Spiritual understanding is needed and required.
God speaks to mankind through Prophets, Apostles and through specific events. Scriptures progress in depth of meaning according to the understanding and worthiness of the recipients. Though given at different times and places, the core teachings are essentially the same.
The Bible is a record of a branch of the Lord's people at times and places separate from those of The Book of Mormon. Prophets who taught of Christ were called from among The Book of Mormon people for over a millennium.
The Book of Mormon recounts the stories and history of small Israelite groups led by Lehi and Mulek and brought by the hand of the Lord from ancient Jerusalem to the American continent approximately 600 BC. it is they who are the principal ancestors of modern Native Americans, the indigenous peoples of Central and South America, and much of Polynesia.
or click on this link:
http://www.lds.org/scriptures/bofm?lang=eng