How is God the Creator?

Robert Lawrence Kuhn (host of "Closer to Truth") asks William Lane Craig on the nature of God as creator of creation. Question(s) explored: What is creation witih respect to God? How does God's providence work into creation? What is the difference between efficient and material causes? What is God's conservation of the world? If something is created does it need to be sustained? What is meant by God's creation and God's annihilation of an object?