Chemicals bumping into one another cannot teach us that child abuse is wrong, or that human life matters. If we are purely matter, and are the result of material processes, then we are destined one day to perish as a race in the destruction of the present solar system. Neither could we explain why people are free under the naturalistic world view. If people are nothing but matter, they must do what they do because they were conditioned to do so. But if we were conditioned to do what we do, we are no more free in our choices than the chain saw.
All morality disappears.
In one area after another, we will find that it is impossible to act in such a way that we are consistent with the world view of naturalism. Therefore this world-view fails the test of internal consistency, and should be rejected by honest thinkers. Instead, we should accept the fact that a personal moral and rational God has indeed created us and our world. When people realize their presuppositions don't match their conclusions, they often become open to new information. The universe is personal, moral, and free at it's core because its creator is personal, moral, and free.