The talk about the beginning of the universe seems to imply the creation of something of great immensity out of nothing. That sounds more like religion than science.
Please justify your assumptions about the nature of time.
Maybe there was/is no beginning to the universe but instead it exists akin to a Mobius loop, having no beginning or end but continuing forever in an endless loop. The universe could have expanded and collapsed a billion billion billion times previously and will do so again a billion billion billion more times.
But if science sounds like religion to you then you don't understand science. I would recommend reading Astrophysics for People in a Hurry by Neil DeGrasse Tyson.
Skip Tyson’s first paragraph, about the size of the original “nothing”.
The fact that our species doesn't have or hasn't had scientific understanding to discuss this issue leads us to create ''our father which art in heaven." It's soooo calming, isn't it? Garban (just below) is correct...there's a difference between ''beginning'' and ''creating."