One proof, well suited to the common knowledge of our time, is expounded here in common language without philosophical jargon. Beginning only with a basic experience of the physical universe and time, we seek to demonstrate that the universe was created long ago by a Being outside of time, whom we properly call God. See more on the demonstration from religious experience in my short essay on faith and reason . Our argument now is summarized below. If you have a problem with any step of the argument, click on its number to see further explanations of or objections to it along with my replies.
Time passes, from the past, into the present, and on to the future.
The past was either finite or infinite in duration. That is, the amount of seconds, days, years, etc. History has its end in the present. So if the past was of infinite duration, an infinity came to its end. But this is a self-contradiction.