So you got some automatic slams, but that is okay. They are right, but not informative.
Do you believe that the ancient Greek God, Zeus? I am guessing not. Yet there are a lot of written records that mention him, as well as paintings that depict him. There is, therefore, some documentary support for his existence.
Same with the Christian God and the same for George Washington.
The difference is that no one claims that George Washington is an infinitely powerful being that transcends time and space and created the universe. They claim he was a normal man. His existence was noted by peers. Documents written in his own hand have been preserved. There is a consistent body of evidence that supports his existence.
For Jesus, there is only a small body of evidence that supports his existence and it is extremely inconsistent where it does not obviously plagiarize from other writers. The canonical Gospels diverge from each other in the details and the non-canonical gospels are even more divergent.
In fact, I would say there is more proof for the existence of Harry Potter than there is for Jesus.