Not only incest but also human sacrifice. Women in the Bible are categorised along with cattle and property. Also the Bible says that a man can have as many wives as he wishes, As long as he can provide for them. According to the Bible, A man can take a young girl off the street as a wife as long as she isn't 'owned'.
If, And it's an astronomical sized if, The Bible were proven to be factually correct, You could never convince me that it wasn't a book of evil.