God's Name

[robvalue]

I wouldn't know for sure, but it would be some evidence at least. By easily observing evidence to the contrary every day, this is evidence that he is not in fact good, unless this is actually the best he can do. A far less powerful God would be much easier to justify.

What sort of evidence can he give that would indicate conclusively he is good?

When you're talking about the motivations of an intelligent being, it's beyond our power to ever be certain someone is "good" and not just pretending to be good while hatching an evil plan. All we can do is make a reasonable estimate based on evidence. It's the same with everything in life. We have no certainty, we have probabilities. However, if we have evidence that they appear not to be good, then it's reasonable to not yet believe they are good. It's not reasonable to assume they must be good anyway and make a load of baseless assertions to excuse their behaviour. Better to wait until proper evidence can be evaluated.

If this God could demonstrate to us what he's up against, what the limits to his resources are, why our lives are in fact the best he can make them and what his overall plan is, then he could make a convincing case.

But if this God is a being of limited power governing the whole universe, the idea that he's even aware of us is far fetched; and if his interests are universal, we'd also be inconsequential. He wouldn't necessarily have any idea we are self aware. Our time on this planet, cosmically speaking, is the blink of an eye. The idea that this being is actually primarily worried about what we're up to and what hole we stick our dicks in, while fighting a battle to keep the whole universe in order for whatever reason, just demonstrates the super inflated ego of our species.