The God Of The Bible Is Like A Child Playing In A Sandbox: Entirely Preoccupied With The Trivial And Oblivious To All The Rest
Whether you hold God or the Big Bang responsible for the origin of the universe, everything that follows does so in the same way: without a director.
Early humans inherited from their prelinguistic hominid ancestors a promiscuous tendency to attribute agency to nearly everything—not only predators (whose threat to eat us was real) and prey (whose threat to be eaten by us was real), but also entities and forces that only seemed hostile or benevolent, like the weather, the ground beneath us, the ocean and other bodies of water, the sun, the moon, and everything else in the sky.
With language, those agents of nature either became a god or were believed to be governed by one. It took a while for the notion of a single God who governs everything to materialize.
The Book of Genesis speaks of God, who created the universe (as it was understood at the time). But the very next book, Exodus, reveals that this creator God isn't the only one.
When he hands down the Ten Commandments, he enjoins the Israelites to refrain from worshiping any of those other gods that are mentioned throughout the Bible: national gods, household gods, gods of the natural forces, and many, many others.