Re the sparrows....The kings mistake was not understanding the principles of food chain, had he consulted the farmers their observation may have educated him. That he brought the sparrows back only only reestablished the status quo.
His acknowledgement of god is really two fold on the one hand ..his balance of nature is correct. On the other..I'll just have to put up with the returned sparrows eating the wheat ,caterpillars and locusts! Result... his subjects had little wheat. Silly king relying on god me thinks.