What follows is part of Uncle Jack’s response to a young woman who discovered she was pregnant; the surprise wasn’t altogether welcome. In the midst of her turmoil she discovered that her Bible had opened to Isaiah 66, and she interpreted the phenomenon as a miracle. So, here is Lewis’ reply.
It doesn’t really matter whether the Bible was open at that page thru’ a miracle or through some (unobserved) natural cause. We think it matters because we tend to call the second alternative, ‘chance.’ But when you come to think of it, there can be no such thing as chance from God’s point of view. Since He is omniscient His acts have no consequences which He has not foreseen and taken into account and intended. Suppose it was the draught from the window that blew your Bible open at Isaiah 66. Well, that current of air was linked up with the whole history of weather from the beginning of the world and you may be quite sure that the result it had for you at that moment (like all its other results) was intended and allowed for in the act of creation. ‘Not one sparrow,’ you know the rest [Matthew 10:29]. So of course the message was addressed to you. To suggest that your eye fell on it without this intention, is to suggest that you could take Him by surprise. Fiddle-de-dee! This is not Predestination: your will is perfectly free: but all physical events are adapted to fit in as God sees best with the free actions He knows we are going to do. There’s something about this in Screwtape.
Whether or not you agree with Lewis’ mild dismissal of the miraculous cause, this excerpt’s significance lies in his introduction of a third alternative that is neither miraculous nor naturalistic; God knew the puff of wind would happen along, and that it would flip several pages to reveal Isaiah 66, and since the woman needed exactly that Bible passage’s encouragement, He allowed it to happen. Or perhaps God caused the chain of events that revealed the passage she needed to read. There are nearly infinite possibilities that could explain that Bible passage showing up when it did, but none of them include chance.
Chance, luck, and coincidence are among terms non-believers use to explain the unexplainable. But simply because we are unable to see or understand God’s hand maneuvering circumstances doesn’t mean He isn’t doing it. Our self-existent, eternally living God is the Lord of happenstance.