You do hear it said sometimes that there is no evidence that God exists. If no-one has ever seen God, how can he be real? If God exists and he is good, how can he allow so much suffering in the World?
It's a serious accusation because it is calling the follower of God deluded or even worse, a liar. Every outsider enjoys a dramatic court case, if this accusation of fraud was taken to court, what would be the outcome? Is there really NO evidence of God?
The way to win a court case is to use the evidence to establish the truth. You can do this two ways.
If you are a Defense lawyer you can take the evidence and put up an alternative explanation and so cast doubt. Lawyer's have become so clever at this, that even when an accused person is plainly guilty, if enough doubt can be established the accused will get off Scot free.
On the other hand, if you are acting for the Prosecution, you will want to present evidence so overwhelming that even if some doubt can be cast, the overall weight of facts is enough to get a conviction.
It is always up to the Jury to decide which argument is the most convincing. It is up to you to decide whether God exists or not, but since it is a serious question, you should at least carefully consider all the evidence.