In this fourth chapter of the Book of Jonah, (Jonah 4), the prophet Jonah has a strange reaction to his success. He's angry, and sulky. He thinks he knows better than God does. What is this story about?

Rev. George McCurdy, in his exegesis of this chapter, offers a summary in his Study Guide for the Book of Jonah, which is available for free as a .pdf, for your use. Below, we've excerpted part of his summary, and edited it for use in this context.

The people of the Jewish church in Jonah's time didn't want to reconsider their belief in their "most-favored-nation status." They challenged the Lord. They couldn't understand why He wanted to save their enemies in Nineveh.

Despite the hard lessons in chapters 1 and 2, and his success as described in chapter 3, Jonah still thought he knew better than the Lord. He thought that God was being too soft and loving -- too forgiving -- and that He needed to come around to Jonah’s tougher view.

Jonah got so angry and vengeful that he preferred to die rather than approve of the Lord’s way to save the Ninevites. His self-love wanted shade -- protection for its concepts. The Lord needed to bring such thinking to an end; the worm brought about death to the gourd from within. The Lord then sent a vehement east wind, that represents a blowing away of the stagnant thinking of the church.

The Lord's heavenly sun shone upon Jonah, but he felt faint. Here, Jonah's insistence on his own troubling view of things made him uncomfortable with the Lord’s view. The Divine guidance offered him a way to learn to enjoy the success of his neighbors as his own, but he wouldn't take it.

For us, then -- what? This story is telling us that we can't just keep the truths of the Word for ourselves; we have to go to Nineveh and share them. And then, if people start to hear them, and use them to turn their lives around, we can't allow ourselves to get resentful that the Lord accepts their repentance and forgives them. It's a very human reaction; think of the disciples vying to be first in the Lord's command structure (Luke 9:46), or the brother of the prodigal son (Luke 15:28-29), or the workers in the vineyard who had worked all day for a denarius (Matthew 20:10-12). But... it's not a good reaction. The Lord doesn't admire it in Jonah, and doesn't admire it when it crops up in our minds, either.

Rev. Martin Pennington recommends several explanatory passages from Swedenborg's theological writings:

"Shade or shadow means the perception of good and truth lies in obscurity." (Arcana Coelestia 2367)

"A vine is spiritual good (the spiritual church)". (Arcana Coelestia 217)

"A worm represents falsity gnawing away and tormenting one." (Arcana Coelestia 8481)

"'And the sun grew hot' in the contrary sense means self-love and love of the world." (Arcana Coelestia 8487)

And... here's a link to an interesting (audio) sermon on this chapter, by Rev. Todd Beiswenger.

3464. 'And pointed out to him the reasons for the well which they had dug; and they said to him, We have found water' means interior truths obtained by means of these. This is clear from the meaning of 'a well' as the Word, dealt with in 3424, and from the meaning of 'water' as truths, dealt with in 2702, that is to say, truths drawn from the Word. 'Pointing out to him the reasons for the well which they had dug' accordingly means concerning the Word, the source of matters of doctrine; 'and they said to him, We have found water' means that it is in these, that is to say, in matters of doctrine, that interior truths reside; for as stated above, all matters of doctrine drawn from the literal sense of the Word include interior truths within them. For the literal sense of the Word is like a well with water in it, in that every single thing in the Word holds within itself the internal sense, which resides also in matters of doctrine drawn from the Word.

[2] The situation with matters of doctrine drawn from the literal sense of the Word is that when anyone possesses them and at the same time lives according to them a correspondence exists within himself. For the angels who reside with him are alive to the interior truths when he is alive to the exterior; and in this way he has communication with heaven by means of matters of doctrine, though this is conditioned by how good a life he leads. For example, when at the Holy Supper this person in simplicity thinks about the Lord from the words 'This is My body' and 'This is My blood' the angels residing with him have in mind love to the Lord and charity towards the neighbour; for love to the Lord corresponds to the Lord's body and to the bread, while charity towards the neighbour corresponds to His blood and to the wine, 1798, 2165, 2177, 2187. This being the nature of the correspondence, there flows from heaven by way of the angels into that holiness present with the person at that time an affection which he receives according to the good within his life.

[3] Actually angels dwell with every person in the affection that belongs to his life, and so in the affection for the matters of doctrine according to which he lives, but never in the matters of doctrine with which his life is at variance. If his life is at variance with them, as it is if his affection is to gain position and wealth for himself by means of matters of doctrine, the angels in that case depart and spirits from hell dwell in that affection. These either instill their confirmations into him that favour self and the world - thus a false persuasion, which is such that he does not care at all whether a thing is true or false, provided people's attention is drawn to himself - or they take away all faith, in which case the doctrine on that person's lips is merely a sound prompted and fashioned by the fire of those loves.