The only reason it should be accepted is belief in God. If you don't believe in him then you shouldn't accept this.
I'm sorry but that is not simply totally false, it is just plain silly and changes GOD into some book.
Many theist believe in God yet realize that all you have provided is a poetic description. Many Christians also realize that the two mutually exclusive tales in Genesis were poetic and allegorical.
Belief in GOD, even the Christian Biblical God does not mean you have to accept things which have been shown to be false, like the passage you quote.
Aslan is not a
Tame Lion