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.

3417. 'And camped in the Valley of Gerar and dwelt there' means that He did so for lower rational concepts, that is, He abandoned interior appearances for exterior. This is clear from the meaning of 'camping' as arranging into order, from the meaning of 'the Valley of Gerar' as lower rational concepts or exterior appearances of truth - for 'a valley' means lower things, or what amounts to the same, exterior things, 1723, while 'Gerar' means matters of faith and so of truth, 1209, 2504, 3365, 3384, 3385; and from the meaning of 'dwelling' as having one's being and life, dealt with in 3384. From this it is evident that 'he camped in the Valley of Gerar and dwelt there' means that the Lord arranged truths so that they would also be suitable for the mental grasp and the disposition of those who are not concerned so much with life as they are with matters of doctrine concerning faith, as may be seen from the Word, in which likewise truths are suited to people's ability to grasp them.

[2] For example, people who are concerned with matters of doctrine and not so much with life do not know anything other than this, that the heavenly kingdom is like kingdoms on earth, in that people are made great there when they govern others. The delight that comes from this is the only delight they know of; and this they prefer to all other delight. For this reason the Lord has also spoken in the Word according to that appearance, as in Matthew,

He who does and teaches so will be called great in the kingdom of heaven. Matthew 5:19.

And in David,

I said, You are gods, and sons of the Most High, all of you. Psalms 82:6; John 10:34-35.

And because at first the disciples themselves did not have any other conception of the heavenly kingdom than that of greatness and position over others, like that on earth - as is clear in Matthew 18:1; Mark 9:34; Luke 9:46, and also the idea of their sitting on the right hand and on the left of a king, Matthew 20:20-21, 24; Mark 10:37 - the Lord therefore replied according to their mental grasp and also inclination of mind when an argument arose among them about which one of them was to be greatest,

You will eat and drink at My table in My kingdom, and you will sit on thrones judging the twelve tribes of Israel. Luke 22:24, 30; Matthew 19:28.

For at that time they did not know that the delight of heaven is not the delight that goes with being great and having position over others, but the delight that goes with being humble and with the affection for serving others; and so it does not consist in wishing to be the greatest but to be the least, as the Lord teaches in Luke,

Whoever presents himself as least among you all will be great. Luke 9:48.

[3] Thus people who have a knowledge of cognitions but are devoid of the life of charity cannot know of the existence of any other delight than that which results from having position over others. And since that delight alone occupies their minds and constitutes the whole of their life, therefore they do not have any knowledge at all of the heavenly delight which results from humility and from the affection for serving others. That is, they do not know the delight that accompanies love to the Lord and charity towards the neighbour, and the consequent bliss and happiness. The reason why the Lord adapted what He had to say to their imperfect outlook was so that they could be aroused and led on to good, to learn it, to teach it, and to do it. And yet He does teach what greatness and position actually are in heaven, as in Matthew 19:30; 20:16, 25-28; Mark 10:31, 42-45; Luke 9:48; 13:30; 22:25-28. These and other ideas like them belong to the lower degree of appearances of truth, for in relation to others those in heaven are made great, and are given positions, power, and authority over others, in that one single angel is more powerful than ten thousands of spirits in hell, yet not so from himself but from the Lord. And he has that power from the Lord in the measure that he believes he can achieve nothing from himself and is accordingly the least. And he is able to have such a belief in the measure that humility and an affection for serving others exist in him, that is, insofar as the good that is essentially love to the Lord and charity towards the neighbour is present in him.