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Just do a little reading...
A little side-by-side study on the major tenets:
Bible v. Koran....
It's no contest as for authenticity /inspiration/ historicity...
Koran & Sharia Law:
....Leads to disfigurement, amputation, stoning of women and hanging of children, rape, brutalization, or execution of non-believers....
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Bible & God's Law:
...Leads to conviction of sins, repentance, forgiveness in Christ...
God's love and mercy pouring grace for all who believe, and always extending kindness, compassion, and charity to non-believers.
This is why the Bible now and forever will always be the number 1 best selling all time book.