Doesn't evil exist as a sort of filter for humanity? If evil didn't exist there'd be no way to determine who's truly worthy of salvation or not, since "evil" is, colloquially. a composite of temptations and actions that negatively affect the soul.
Another issue with the Epicurean paradox is that it pre-supposes an obligation from God to stop evil (never made) and puts in place the idea that God is incapable of self-limitation, which he demonstrated via his pact with humanity after flooding the earth. For example: God is omniscient (maybe? I find it contentious from what I've read) yet he got pissed off when they were crucifying Jesus, which shouldn't make any sense given he should already know it's going to happen anyway. Similarly he would've already known Abraham's commitment to him, yet he still asked for his son to be sacrificed. He similarly expressed anger in the old Testament to for numerous things I can't recall.
There's also the fact that God didn't
create evil. It's in fact a product of the first humans making a choice that goes against God, and since evil is a product of humanity and God promised not to intervene in human affairs, stopping evil would be an intervention and thus a violation of his promise to man. This same promise might also apply to natural disasters and the like.
The Epicurean Paradox provides a limited selection of answers to why evil exists, but neglects the fact that
we created evil.
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TLDR: "Evil" broadly covers a lot of actions many might consider slight or not evil at all, but I digress. "Evil" is a product of "Free Will". God promised not to impede our "Free Will". Ergo God cannot stop "Evil" without violating his promise.