One of the barriers for many in believing that God exists, that the Bible is true, or that the God created the universe, are some very good questions that remain unanswered.
For many others who claim to not believe in God, unbelief is a matter of the will, not the lack of sufficient evidence. For a minority of those who are sincerely seeking truth, these genuinely want to know if God exists, but have not found reasonable answers to their questions. Some of those questions that are obstacles to a belief in God, have nothing to do with evidence, but are those perceived contradictions perceived in the mind of those with doubts.
Some of these barriers to belief, are question such as: “How evil could exist, as it does in the world”, if there is an all powerful God?” “If God truly loves human beings as is claimed, why does he allow so much human suffering?” “How could there be a God who truly cares about us, yet allows evil men to carry out their brutal and cruel acts?” “Why do so many bad things happen to so many good people?”