Isaiah 55:8-9

8 “My thoughts are completely different from yours,” says the Lord. “And my ways are far beyond anything you could imagine. 9 For just as the heavens are higher than the earth, so are my ways higher than your ways and my thoughts higher than your thoughts.

New Living Translation

There are so many things God does that I just don't get.  Why does He answer some prayers, but not others?  Why does it seem that the most desperate ones are the ones that are not answered?  Why does He take so long to act?  And the list of questions goes on, and on, and on....

Job had a long list of questions for God.  At the end of the book, God came and talked to Job, but He never offered any answers or explanations.  Instead, He asked some questions of His own.

"Where were you when I made the heavens and the earth?  Did you make the mountains and the seas?  Did you make the animals?"

God's point was this:  He knows a whole lot more than we do, and His power and authority, and His wisdom, are absolute.  He doesn't owe us an explanation.

Also, He doesn't explain because even if He did, we would not be capable of understanding the answers!  He doesn't think like we do, limited by time, space, and our own personal experiences. 

So He doesn't explain Himself.  He just asks us to trust Him, even when we don't understand.