The questions I have are three fold.  1. Without evidence, aka the "not provable" part of your comment, how is there a good reason to accept a god claim to begin with (this applies to zeus, thor, etc).  Furthermore, belief systems are not dependent upon faith.  Many people who have no faith or different faiths, for example, hold the belief that slavery is wrong (which is ok in the bible btw) etc.  2. As for gun control, statistics show that laws do save lives when they are comprehensive.  If it is all "up to us," wouldn't we be best served by using the best empirical data available to inform decision making? Including data from other countries? How is using data faith? Seems to be the mirror opposite. 3. We don't have periodic mass shootings.  In the last 1700+ days, we've had 1500+ mass shootings = nine mass shootings every ten days. That is a lot more than occasional slaughter.  Even if they were rare, where is our morality if we tolerate/enable any mass murder?