This post contains a Ken Ham video. He defined worldview, and explained how it is that a person arrives at his/her worldview. Then he explained how contemporary churches err in not teaching Genesis 1-11, those chapters are the foundation of all Christian doctrine and a Christian must understand them to have a biblical Christian worldview. Social issues such as abortion, gay marriage… must be dealt with via discussions about worldview; to discuss those issues as though they are problems unrelated to worldview (as most Christians presently do) is to wrongly address them….
