The Bible is neither the word of God or of Satan; rather it is an anthology of anthologies and a collection of works covering several totally different subjects.
The main types and purposes of different parts of the Bible are passages that show how humans of different eras, cultures, societies and mythos view God and their relationship with that God; passages that develop and create a people and define their identity over time; passages that define the evolving legal system of specific cultures and passages that present general philosophy.
There is another point and that is there is no such thing as "The Bible
", different Chapters of Club Christian have decided varying lists of what should be considered as Books of the Bible. Since there is no uniform and universal Canon the most reasonable conclusion is that Bibles are simply the work of man.
Anyone so limited that they can only spell a word one way is severely handicapped!