He started it!
"In the beginning God created the heavens and the earth." (Genesis 1:1)
The differences between these two points of view were debated among Jews, Muslims and Christians, with a mixture of approaches. The debate reached some sort of conclusion when Immanuel Kant arrived at the conclusion that both points of view were more or less valid. But there was a great argument that showed that not only had the universe started but that it was indeed created by God. It was developed by a Muslim philosopher, Al Ghazali in Persia in the 12th century. He was annoyed that Muslims were being influenced by Greek philosophers.
Something cannot come from nothing. To claim that something can come from nothing is worse that magic. If you think that the universe can come from nothing then a capucino or a wooly mammoth a or a small Lincolnshire town could just pop into existence. In physics there are subatomic particles also called virtual particles that are said to fluctuate in and out of existence. In popular science shows and magazines it is sometimes said that this means that the universe could have popped into existence out of nothing. This is mis-representation, this is not what is meant by fluctuating in and out of existence. They do not come from nothing they come from energy, the energy becomes matter and vice versa. Space or a vacuum are not nothing they have properties such as energy and time. Nothing comes from nothing and all serious thinkers, including physicists know this, so everything that has a beginning has a something that caused it to come into existence.
God started it all.
The heavens are telling the glory of God; and the firmament proclaims his handiwork. (Psalm 19:1)