outhouse
Atheistically
Can we be this sure God can't possibly exist?
In light of no evidence what so ever. Yes we can.
In light of knowing man has been creating deities for thousands of years seals the deal.
Knowing how man alone defined the monotheistic god by combining two Canaanite deities they plagiarized, yes we do.
Knowing how they added a "son" to the deity concept redefining it, that was a "son of god" the same way the Emperor was at that time, who the followers competed against by Proselytizing the Emperors followers. YES we do.