It is understandable why some people have become atheists after reading the Bible. Many have argued that the God of the Bible is “genocidal,” “a cosmic bully,” and “evil.”The skeptic could argue that there is scriptural support for their position as many verses are morally repugnant. Sacrificing infants, committing genocide in the name of Yahweh, questionable laws and so forth can all be found in the Bible. This would undoubtedly put many people off. On the other hand some people who claim to be Christians only maintain their faith because they have a false notion of the God of the Bible. Once they read the Bible and find out how God really is, they then reject him.
Neutrality is a myth. When a skeptic reads the Bible he approaches it with a bias, just as the Christian would. In other words, many people approach the biblical text with a naturalistic worldview. Given the truth of naturalism, the biblical narratives would seem absurd. Things like God dividing the sea via Moses for the Israelites to pass through safely, or Jesus’ miracles, or talking animals would seem absurd. However, that is only because a skeptic’s worldview rejects God and the supernatural a priori.
A Christian might also point out that many people have embraced Christianity after studying the Bible. Former atheists like Lee Strobel, Jim Wallace, Alister McGrath, Francis Collins, Holly Ordway, C.S Lewis, David Wood, Ravi Zacharias, and Darrin Rasberry could testify to this. Some, like Michael Bird, have studied the life of Jesus and become convinced of his deity. So the Christian would be correct in pointing out that not everyone who reads the Bible becomes an atheist.