In his marvelous book Orthodoxy, G. K. Chesterton writes one of the most powerful paragraphs on the joy of God.

Because children have abounding vitality, because they are in spirit fierce and free, therefore they want things repeated and unchanged. They always say, ‘Do it again’; and the grown-up person does it again until he is nearly dead. For grown-up people are not strong enough to exult in monotony. But perhaps God is strong enough to exult in monotony. It is possible that God says every morning, ‘Do it again’ to the sun; and every evening, ‘Do it again’ to the moon. It may not be automatic necessity that makes all daisies alike; it may be that God makes every daisy separately, but has never got tired of making them. It may be that He has the eternal appetite of infancy; for we have sinned and grown old, and our Father is younger than we.

If you have never read anything by Chesterton, then you’re missing out. He was a strong influence on C. S. Lewis and many other well-known writers, such as Graham Greene, Dorothy Sayers, Ernest Hemingway and T. S. Eliot. A good place to start would be either Orthodoxy or The Everlasting Man. If you have a taste for fiction, then you would probably enjoy The Father Brown Mysteries or The Man Who Was Thursday.