The Bible as written is incomplete. Lots of books could have been added. The book of Jasher, The book of Hemas, The book of Tobit, The book of Enoch to name a few. These books go in detail. Example: Cane killed Able with the Iron part of a plow. A man named Lamech kllled Cane. No, the Bible is incomplete.
None are more hopelessly enslaved than those who falsely believe they are free.