It doesn't matter what the particular problem is for a person's faith. Having an omniscient God concept solves it. It could be the intractable and unanswerable problem of ubiquitous suffering; or how a man could be 100% God and 100% man without anything leftover, or left out; or how the death of a man on a cross saves us from sins; or why God's failure to better communicate led to massive bloodshed between Christians themselves. It just doesn't matter. God is omniscient. He knows why. He knows best. Therefore punting to God's omniscience makes faith pretty much unfalsifiable, which allows believers to disregard what reason tells them by ignoring the probabilities.
I call this the
Omniscience Escape Clause (read the link). There is only one way to convince believers in an omniscient God that their faith is false. They must be convinced their faith is impossible before they will consider it to be improbable, and that's an utterly unreasonable standard since the arguments to the contrary cannot hope to overcome the
Omniscience Escape Clause. So think on this: Given that there are so many different faiths with the same escape clause let believers seriously entertain that their own God might equally be false. Sure, an omniscient God might exist (granted for the sake of argument), but how we judge whether or not he exists cannot rely over and over on his omniscience since that's exactly how other believers defend their own culturally inherited faith. Reasonable people must
not have an unfalsifiable faith, and yet an omniscient concept of God makes one's faith pretty much unfalsifiable. But this is not all...