These people left our churches because they never really belonged with us; otherwise they would have stayed with us. When they left us, it proved that they do not belong with us.
1 John 2:19

Another one of the big questions of life is, How do you explain human nature? Why do human beings act the way we do? What it really boils down to is, Why am I so good and you're so bad?

During World War II, a young Jewish teenager kept a journal during the years she and her family hid from the Nazis in a secret apartment in a house in Amsterdam. Anne Frank's diary poignantly explored the way she tried to decide if people were basically good or basically evil. Acts of kindness and blessing seemed to indicate people were basically good; but then the next day, Anne would learn of yet another barbarous act of depravity and torture, and she would think that perhaps people were basically bad after all. After reading her diary, I remember carrying on the quest for an answer in my own mind, and not finding it until I trusted Christ and learned what His Word had to say about it.

Naturalism says that humans are nothing more than evolved social animals. There is nothing that truly separates us from the other animals, so all our behavior can be explained in terms of doing what helps us to survive and reproduce. Your only purpose in life, naturalism says, is to make babies. And failing that, to help those who share your genes to make babies. Kind of makes you want to jump out of bed in the morning, doesn't it?

Another answer from naturalism is that we are born as blank slates, and we become whatever is written on those slates. You might mix in some genetic factors, in which case human nature is nothing more than a product of our genes and our environment.

Pantheism explains human nature by saying we're all a part of god, but our problem is that we forget we're god. We just need to be re- educated and start living like the god we are. Our human nature will be enhanced by attaining what pantheists call "cosmic consciousness." According to New Age thought, the problem with humans is that we suffer from a collective form of metaphysical amnesia. We just need to wake up and remember we're god. When people are bad, (which is one result of forgetting you're god), pantheism says that they'll pay for it in the next life when they are reincarnated as something less spiritually evolved than their present life. I had a Buddhist friend who refused to kill insects in her house because she said they had been bad in their previous lives and had to come back as bugs, and it wasn't her place to prematurely mess up their karma.

The Christian worldview gives the most satisfying answer to the question, How do you explain human nature? The Bible teaches that God created us to be His image-bearers, which makes us distinct from the entire rest of creation. But when Adam and Eve chose to rebel in disobedience, their fall into sin distorted and marred the sacred Image. The fact that we are created in God's image explains the noble, creative, positive things we can do; the fact that we are sinners who love to disobey and rebel against God's rightful place as King of our lives explains our wicked, destructive, negative behavior. It makes sense that this biblical view of human nature reveals the reasons why mankind is capable of producing both Mother Teresa and the holocaust.