How is NUance being certain of God and his glory any different than knapplc being certain that God is merely a made up entity?
The difference is that only one of those is based off of rational evidence.
I don't think knapp makes a factual claim that God doesn't exist. I could be wrong, and let me know if I am, but I seem to always encounter him talking about God not existing only within his own personal conclusion. Not saying anything along the lines of, "I know this is true, and that people who don't believe it are wrong."
My stance is that the god of the Bible is not dissimilar to the gods of that region and time when it was created. A good analogy to this is the Israelites' desire to have a king
because all of their neighbors had a king, so they made a king (Saul). All their neighbors had gods, so they came up with a god.
The Christian god hasn't been seen in 2,000 years or so, there is no factual evidence of said god actually existing, and many, many portions of the god's origin story can be seen in the origin stories of other gods.
Based on that, I reasonably conclude that "god," as he is referred to in this conversation, is no more real than Zeus or Odin. I'm open to evidence to the contrary, but until that is provided, there's no reason to believe any of this story is true.
But, he'll also say it is required to provide proof (facts) of any claims that God does exist while at the same time saying it is not required to provide proof that he does not exist. It may be his own personal conclusion but he sure does treat it like fact. And how would that be any different than a believer approaching and presenting his viewpoint as fact based on their personal conclusion?
I understand the logical fallacy of asking someone to provide proof that something does not exist but I would hope people have the ability to think far enough outside the box that they realize it is equally as impossible to provide evidence of a supernatural being such as God.
It should NOT be impossible to provide evidence of a god who describes himself as a loving father engaged in the lives of his children. It should be exceedingly easy, as easy as proving to a new acquaintance that your father exists - take him over to your dad's house and introduce them in person.