Here’s our sophisticated theology of the week, an explanation of why the deity runs his creation using random processes, like mutation or the chance fertilization of an egg by a sperm, instead of direct intervention:
Why does God use processes many of which involve non-determinacy rather than direct action? We don’t know for certain, but some plausible answers have been suggested:
First, let’s consider the question of why God uses secondary agents rather than direct action. The Genesis account of human creation says that God placed the man and woman in the garden to tend and care for it. This passage is often seen as revealing God’s plan that human beings should serve as his stewards of the earth. By establishing processes rather than using direct action, God has made a stable, understandable world that humans are able to steward.
Second, let’s look at why such processes include non-determinacy. One plausible answer is that it is simply good management practice. Good managers don’t micromanage; rather they focus on the big picture and leave the details to subordinates. Thus non-determinacy provides a highly effective process for generating and maintaining stable ecosystems and life itself without direct control on God’s part, when direct control would mean constantly managing every aspect of billions of billions of billions of molecules. Another plausible explanation for non-determinacy is that God lovingly gives freedom and/or agency to creatures. We might say the Creator creates creatures that join in the creative process. Genesis 1 seems to support this view, for Scripture several times says God that commands creatures to “bring forth” other creatures.