You are able to provide rock-solid evidence for your parentage, which no-one can deny. Whatever evidence you think you have for your religious beliefs may be sufficient for you and good luck with that. That's a respectable position. Air that evidence in public when there are a few thinking atheists around and not only would your evidence be in peril of being debunked but it would also likely be shown to not be evidence in the strict sense at all. Best to keep your belief private. I've been saying just that to folks of a religious persuasion for decades. ;-) So your parentage need not be stated as a belief at all. Morrisons are currently selling a highly rated Spanish red wine. Do you believe me? Well here's the wine with their logo on the label and here's the receipt I got for it this morning, and you can find its high score, the sum of thousands of customer reviews, on Vivino. You don't have to believe me. In fact, I'd rather you didn't say that you do!