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.

2187. 'And they ate' means communication in this manner. This becomes clear from the meaning of 'eating' as being communicated, and also being joined together, as is also evident from the Word. The injunction that Aaron, and his sons the Levites, and also the people were to eat the consecrated elements of the sacrifices in a holy place meant nothing other than the communication, conjunction, and making one's own, as stated above in 2177, at the point where Leviticus 6:16-17, is referred to. For it was celestial and spiritual food that was meant by the consecrated elements, and thus making that food their own by eating those elements. These consecrated elements were those parts of the sacrifices which were not burned on the altar but were eaten either by the priests or by the people who brought the offering, as becomes clear from very many places where the sacrifices are the subject. The consecrated elements that were to be eaten by the priests are referred to in Exodus 29:32-33; Leviticus 6:16, 26; 7:6, 15-16, 18; 8:31; 10:12-13; Numbers 18:9-11; and those to be eaten by the people, in Leviticus 19:5-6; Deuteronomy 12:27; 27:7; and elsewhere. And that those who were unclean were not to eat of them is referred to in Leviticus 7:19-21; 22:4-7. These ritual feasts took place in a holy place near the altar, either at the gate or in the court outside the tent. And they meant nothing else than the communication, conjunction, and making of celestial goods one's own, for those feasts represented celestial food. For what celestial food is, see 56-58, 680, 681, 1480, 1695. And all those consecrated elements were called 'bread', for the meaning of which see above in 2165. Something similar was represented by Aaron and his sons eating the loaves of the presence, or the shewbread, in a holy place, Leviticus 24:9.

[2] The reason for the law given to the Nazirite that during the days of his Naziriteship he was forbidden to eat anything that is produced from the grape - from which wine is made - from pips even to skin, Numbers 6:4, is that the Nazirite represented the celestial man, and the celestial man is such as is not willing even to mention spiritual things, see Volume One, in 202, 337, 880 (end), 1647. And because 'wine' and 'the grape', and also whatever came from the grape, meant that which is spiritual, the Nazirite was therefore forbidden to eat of them, that is, to have any communication with spiritual things, to join himself to them, or to make them his own.

[3] Something similar is meant by 'eating' in Isaiah,

Everyone who thirsts, come to the waters, and he who has no money, come, buy, and eat! Come, buy wine and milk without money and without price. Why do you spend money on that which is not bread, and your labour on that which does not satisfy? Hearken diligently to Me and eat what is good, and your soul will delight itself in fatness. Isaiah 55:1-2.

And also what is said in John,

To him who conquers I will grant to eat from the tree of life which is in the middle of the Paradise of God. Revelation 2:7.

'The tree of life' is the celestial itself, and in the highest sense it is the Lord Himself since He is the source of everything celestial, that is, of all love and charity. Thus 'eating from the tree of life' is the same as feeding on the Lord; and 'feeding on the Lord' is being endowed with love and charity, thus with those things that belong to heavenly life, as the Lord Himself declares in John,

I am the living bread which came down from heaven; if anyone eats of this bread he will live for ever. He who feeds on Me will live through Me. John 6:51, 57. But they said, This is a hard saying. Jesus said however, The words that I speak to you, they are spirit and they are life. John 6:60, 63.

From this it is evident what is meant by 'eating' in the Holy Supper, Matthew 26:26-28; Mark 14:22-23; Luke 22:19-20 - having communication, being joined together, and making one's own.

[4] From this it is also plain what is meant by the Lord's statement that

Many will come from the east and from the west and will recline with Abraham, Isaac, and Jacob. Matthew 8:11.

The Lord did not mean that they were going to feast with these three in the kingdom of God but that they were to enjoy the celestial goods meant by Abraham, Isaac, and Jacob. That is to say, they were to enjoy the inmost celestial goods of love, meant by -Abraham'; also a lower type of goods, which are intermediate, as those are which belong to the rational, meant by 'Isaac'; and a still lower type of goods which are celestial-natural, such as occur in the first heaven, meant by 'Jacob'. These are the things which constitute the internal sense of these words. That such things are meant by Abraham, Isaac, and Jacob, see 1893, and wherever else they are the subject. For whether one speaks of enjoying those celestial things, or whether one speaks of enjoying the Lord, whom they represent, it amounts to the same since the Lord is the source of all those things, and the Lord is their All in all.