There is no creation without a creator. Everything that was ever created or invented is credited to someone who brought it to existence. If we look around us and observe the things surrounding us we can't just help to but admit that it is beyond the human capacity. There is definitely is a supernatural force that supercedes the natural and there is someone in charge of it.
Deuteronomy 32:4 - He is the Rock, his work is perfect: for all his ways are judgment: a God of truth and without iniquity, just and right is he.
One of the ways we can tell that that indeed God exists is because his work is perfect. It is we humans that are prone to make mistakes. But when it comes to God, everything He creates has perfection all over it. The human system is one of the most complicated things in the world of science. It is quite an awe even to scientists how it manages to function on it's own perfectly.
Daniel 4:25 - That they shall drive thee from men, and thy dwelling shall be with the beasts of the field, and they shall make thee to eat grass as oxen, and they shall wet thee with the dew of heaven, and seven times shall pass over thee, till thou know that the most High ruleth in the kingdom of men, and giveth it to whomsoever he will.
This passage tells the story of a king named Nebuchadnezzar who disregarded God and God drove him to the fields and he lived like an animal for seven years. This served as a deterrent to king and also as a lesson to other people who didn't regard Jehovah as the one true God.
There is no need doubting the existence of
Just taking into account the solar system is sufficient reason to believe