A complex system is capable of producing simple behavior that is predictable. Thinking of God in this way may suggest that God can create order that humans can predict. Another way to think of God in conjunction with simple behavior is to assume He is predictable and ordered. Perhaps to make humans feel more secure in their lives. If nothing were ever predictable, life would be terrifying.
Many people rely on order and structure in their lives to feel comfort and happiness.
Maybe he is a loving God who wants us to be able to depend on the order of our lives for comfort. Another idea is that God wants us to be in control of our lives. He set up the universe so humans could get along without Him. This idea suggests that God may have created the universe, and has since stepped out of it. God may be predictable and orderly Himself.