That "Random Thingy" called the Big Bang? That theory was first proposed by the Catholic Church, and was rejected by "logical scientists." But once they realized it was a plausible idea they secularized it, and used the church's own explanation for how the universe came to be as a argument against them. And besides, if God created the universe, a Big Bang is a exactly how I would expect God to do it. The two theories are not mutually exclusive. Checkm8 :)