Information about them is found in the first five books of the Bible (Genesis-Deuteronomy) which were written by Moses, and in the Old Testament prophets.
Habari zake zinapatikana katika vitabu vya kwanza vitano vya Biblia (Mwanzo - Kumbukumbu la Torati) vilivyoandika na Musa na katika manabii walio kwenye Agano la Kale.