1. Which higher power?
2. Oh, and hell doesn't exist except in people's minds.
3. Evolution has perfectly explained how man arose countless times.
4. The existence of pleasure isn't proof or even evidence of a god.
5. Tell people eaten by sharks or bears or that are allergic to peanuts or get cancer from tobacco (plants we "rule" over, right?) that they're ruling.
The "personal relationship" people have with their god/deity is honestly just a deep-seated, heartfelt, and active relationship with themselves, with THEIR own ego. There is no god. There is no deity. Their relationship is within the confines of their own mind. This is why their god can seem so very real to them. In a sense, he is real. HE ... is THEM. This is why their god's opinions are so very often their opinions. This is why two believers of the same religion can both claim to agree with god's opinion but not with each other's. When they pray and god gives them "answers," they THEMSELVES are the source of those instincts, those intuitions, those feelings, those "insights." When they pray and believe they're hearing the voice of god, they're simply having a conversation with themselves and don't want realize it. This is why god can always assuage the doubts of the believer. Their "god" knows exactly how they think because he is THEM. He knows their tastes, their biases and all the gaps in their logic.
Therefore it follows that "he" knows what arguments they will find compelling and what mental gymnastics they're capable of to ignore any arguments to the contrary and the way they'll neatly make everything fit into their worldview, excusing and ignoring anything that doesn't fit. He knows how they'll move the targets to accommodate their beliefs, how they'll excuse the most horrific behaviors by him in his book. He knows how they'll excuse murder, rape, torture, ignoring the pleas of innocent people, killing those who aren't in the right tribe, abortion, or enslaving people and then beating them within an inch of their lives.
Doubting their salvation or their faith is evidence that their minds are fighting back against the ridiculous concept that an inter dimensional being actually exists and cares about their individual lives ... or any human life for that matter. I probably can't convince them of anything I stated above because of the very fact that it is, in fact, true. THEY are their "god".