Athesists often use the idea that the existence of evil in the world is proof there is no God. Believers reject this by stating that God has intentionally given man free will. God intended that Mankind (and Womankind) be free to make moral choices. When the wrong choices are made, evil is manifest in the world. So, the existence of both evil and of God are entirely consistent.
There is another observation that may pose a challenge for those who hold traditional religious views. It is that God created a world where reading and learning about nature will get you farther than meditating about God and the Bible. Why isn’t the latter rewarded much more?
A society that creates an infrastructure for science and engineering will become more powerful in the world than one that only facilitates devotion to God. A deep knowledge of science and engineering is not enough for a society to function well. However, a scientifically-based society that does function well will almost certainly dominate over societies that are exclusively centered around man’s relationship to God.
Why did God so construct the world that physical law seems to trump spiritual law? This does not seem consistent with the “jealous God” that is written about in the Bible. It seems that those who ignore God and focus on mastering natural law are rewarded even though they de-emphasize God. This is not a question of “free will”. One can willingly devote oneself exclusively to God, and lead a righteous life that follows His commandments. Yet, without paying attention to the natural world, that righteous person is vulnerable to those who wield power by virtue of their mastery of nature.
Perhaps this fact tells us something about the nature of God.