Virtually all atheists subscribe to the notion that the universe came about through the supposed big bang, whilst only a very & I mean very small amount of atheists believe that the universe is eternal.
The thing is that none of these notions are plausible because big bang fanatics believe that the beginning of the universe was natural & not supernatural but you see, the problem with that is that according to big bang fanatics, nature didn't exist prior to the big bang, & obviously as any rational individual knows, in order for something to be natural, nature must exist! Therefore the supposed big bang just dismantles itself.
As for the universe being eternal, well, this is equally just as ridiculous. Albert Einstein's theory of General Relatively definitively proved that the universe had a beginning, & whatever begins to exist has a cause, a first cause to be exact. So put simply, since the universe isn't eternal, an eternal Creator that we call God most definitely exists!
I'm a proud and devout Christian