I have been thinking of a scientific explanation of God's existence and I would be grateful for your comments.
Time is eternal.
It has neither a beginning nor an end. When there was nothing in the universe, there was time, which will still remain when there will be nothing as well. This is the universal time, not the one which we know, because our time is relative. Space is also eternal, without any end line. From time immemorial, there was space and after the destruction of the material universe, there will be at least space.