The mind that becomes soiled in youth can never again be washed clean. I know this by my own experience, & to this day I cherish an unappeased bitterness against the unfaithful guardians of my young life, who not only permitted but compelled me to read an unexpurgated Bible through before I was 15 years old. None can do that and ever draw a clean sweet breath again on this side of the grave.

The Bible itself can be used for both good and evil. That doesn't mean it's flawed. It means that it is perfect.

Progress in evil was quick and easy; Apollyon was not a chap who hid himself and he gave every assistance in his power. The growth in goodness was so slow, at times so flat, so dull, and like the White Queen one had to run so fast to stay where one was, let alone progress; and there were few men who dared to say they had found God. It was easy to be a clever sinner, for the race to an earthly visible goal was short to run, so impossibly hard to be a wise saint, with the goal set at so vast a distance from this world and clouded with such uncertainty.

I think you are falling into the very general error of confining the spiritual world to the supremely good; but the supremely wicked, necessarily, have their portion in it. The merely carnal, sensual man can no more be a great sinner than he can be a great saint. Most of us are just indifferent, mixed-up creatures; we muddle through the world without realizing the meaning and the inner sense of things, and consequently, our wickedness and our goodness are alike second-rate, unimportant.

For our struggle is not against flesh and blood, but against the rulers, against the authorities, against the powers of this dark world and against the spiritual forces of evil in the heavenly realms. Eph. 6:12 (NIV)

The bible divides mankind, god will decide our fate.