[FS]

An all-powerful God could alter the laws of nature and the universe beyond our understanding, and make anything happen, I guess.

The Bible attributes God a number of flaws that are whisked under the carpet by saying he gave humanity free will.

If we are to believe the Bible, his patience has limits, he can't see in the future, he needs to rest after six days of creating the world (note: he can't do this in less than the blink of an eye), and he decides to drown the entire planet rather than just erasing the sinful humanity from existence, and there's a ton more. So if you're to take the Bible literally, God is not infallible, all-powerful or flawless.

You could speculate that God's power on Earth is limited to how many believe in him. Or to how the balance of good and evil we do unto each other is divided. The more shit happens here, the less power he gets to act. Maybe he's cruel. Maybe he sees humans as pawns to perform some foggy divine plan and he does not hestitate to sacrifice good nor bad as long as the outcome is his will. Maybe the afterlife is so incredibly worth it, that God decides he lets free will reign over earth and only judges people afterwards.

Or maybe we just can't understand the answer. And maybe we can in the afterlife.