U know light did come first like that scripture and God said let there be light.... The Bible has it right in this instance. The way it is described as being created, that's how science proved it actually happened only the Bible calls it one week, seven days. Which is a time frame that they could understand back then, but it doesn't mean one week by our time and even some Christians believe that.The Big Bang didn't create the Earth - the Big Bang simply released an astronomical amount of simple atoms and laid the foundation through which first light could occur, some 400,000-1M years later. After entire generations of stars lived out the totality of their existence, they created heavier elements upon their collapse. (Nucleosynthesis) This eventually lead to the possibility of planets and moons forming from accretion discs around secondary and tertiary star formations all throughout the expanding Universe. A combination of physical laws and constantly-emerging chemical combinations eventually lead to some of those planets and moons producing environments hospitable to life. Just like the simpler molecules before it, life adapted and changed based on it's environmental constraints, increasing in complexity and spreading over a myriad of settings, eventually resulting in your existence. One day you'll die, and pretty soon afterwards so will the Sun that feeds this planet with energy. The entirety of human history won't even be a memory, just like the vast majority of the rest of the Universe - But don't lose hope! Some other organism somewhere in the Universe might eventually gain enough cognitive power to formulate a question such as yours, and contemplate whether or not something like it existed in a time before...
Or they could attribute everything cool to an invisible magic man in the sky and do a real disservice to the fact that you are pondering these questions...