Lindsay: 1. Modern science demonstrates that everything (solid matter, stars, planets, us, etc.) in the Universe originated from dust particles. The dust particles came together by gravity, formed planets, so fourth. Therefore, who/what set the particles into their first motion (gravitational pull towards each other)? We can't say gravity, because the particles had to be formed first before they could pull toward one of another. Basically, what I'm asking is what created something out of nothing? Nothing (that we know of) can create something out of nothing, yet we exist. Things don't just appear from nowhere naturally. Things haven't existed forever because we live in finite time. Therefore, SOMETHING actively had to form us, the World, everything. Something had to have an intention to form the first particles from nothing because that doesn't happen as part of the natural process. That 'something,' we call God, Allah, the Divine Being, Etc.
2. We live in a world of cause and effect. Who/what was the first cause? Who/what was the first effect. There cannot be an effect without a cause or vise versa. Therefore, we, the World, etc. had to be placed into existence to be affected. But, furthermore, there HAD to be a first cause. That 'first cause' is God.
Hopefully, these two argument can prove to you that God, in fact does exist. If not, say why and I've got a few more. I've NEVER heard an argument that can debunk these two points. Points like this are why astrophysicists, biologists, scientists of all types believe (rather KNOW) of God's existence. I'm not saying all scientists believe in God, I hope that's obvious. Also, I'm largely paraphrasing Aristotle and Aquinas in my points--I didn't just think this stuff up on my own although I wish I could say I did.