In Joel Chapter 2, the inner story is this:

Because sensual people had destroyed the "whole church" with falsities and evil, it was time for the Lord to come and execute His judgment. The variety of insanities of the sensual people caused good and truth, and knowledges, to be dispersed.

The Lord was going to wage war against the sensual people. He blew the trumpet to sound the alarm. His approach would cause those who were opposed to Him to tremble. Upon the proud and resistant, there was to be a terrible judgment. The evil felt the approach of the Lord, and they did not want to lose their power.

So the evil took on the appearance of "steed horses." They hooked themselves up to chariots. They started fires in the stubble of the field. A call was made to form up a mighty army. They lined up in a formation and did not break rank. They lunged with their weapons, running throughout the city. They climbed the walls of the city, breaking through the windows of the houses like thieves.

The battle was not without some temporary negative aspects. The action of the sensual person caused the darkening of the sun and moon, and it made the stars of heaven fall from the sky.

Another call was made by the Lord to His people. He asked them to return to Him with "all your heart, with fasting, with weeping and mourning…Rend your hearts and not your garments." The exhortation here is to be converted and repent, and to be wise.

We are taught that the Lord will establish the church again; He will give it goods and truths, and He will remove evil and thus hell. The new church will have trust in the Lord and will acknowledge Him from the heart. The Divine of the Lord will fill those of the new church with all things, and He will vivify them. Falsities of evil and evils of falsity will dissipate in the "day of His judgment." Those who acknowledge the Lord will be saved.

The theme of this chapter is a call to "awake," to hear the Word of the Lord and respond to His battle cry. For there is no doubt regarding the outcome of this battle: The Lord will, in the end, win the battle for His Word and His Church.

316. "And do not harm the oil and the wine." This symbolizes the Lord's provision that they not violate and profane the goods and truths concealed inwardly in the Word.

Oil symbolizes the goodness of love, and wine the truth springing from that goodness. Thus the oil here symbolizes sacred goodness, and the wine sacred truth. The Lord's provision that these not be violated and profaned is symbolized by the people's being told not to harm them. For this instruction came from the midst of the four living creatures, thus from the Lord (no. 314). Whatever the Lord says He also provides. That this is something He provides may be seen in nos. 314 and 255 above.

That oil symbolizes the goodness of love - this we will see in nos. 778, 779 below.

That wine symbolizes the truth springing from that goodness is clear from the following passages:

Everyone who thirsts, come to the waters; and you who have no money, come, buy and eat. Yes..., buy wine and milk without money... (Isaiah 55:1)

It shall come to pass in that day that the mountains will drip new wine, and the hills flow with milk... (Joel 3:18, cf. Amos 9:13-14)

Joy is taken away... from Carmel, and in the vineyards there will be no singing... No treaders will tread out wine in the presses; I have made their shouting cease. (Isaiah 16:10, cf. Jeremiah 48:32-33)

Carmel symbolizes the spiritual church, because it had vineyards there.

[2] ...wail, all you drinkers of wine, because of the new wine, for it has been cut off from your mouth... The vinedressers have wailed... (Joel 1:5, 10-11)

Almost the same images occur in Hosea 9:2-3.

He washes his clothing in wine, and His vesture in the blood of grapes. His eyes are red with wine... (Genesis 49:11-12)

The subject is the Lord, and the wine symbolizes Divine truth. That is why the Lord instituted the Holy Supper, in which the bread symbolizes the Lord in respect to Divine good, and the wine the Lord in respect to Divine truth; and in their recipients the bread symbolizes a sacred goodness, and the wine sacred truth, received from the Lord. Therefore He said,

I say to you, that I will not drink of this fruit of the vine from now on until that day when I drink it new with you... in My Father's kingdom. (Matthew 26:29, cf. Luke 22:18)

Because bread and wine have these symbolic meanings, so too Melchizedek, going to meet Abram, brought out bread and wine, he being a priest of God Most High, and he blessed Abram (Genesis 14:18-19).

[3] The grain offering and drink offering used in sacrifices had similar symbolic meanings, as described in Exodus 29:40, Leviticus 23:12-13, 18-19ff. The grain offering was an offering of wheat flour, thus taking the place of bread, and the drink offering was an offering of wine.

It can be seen from this what these words of the Lord symbolize:

Nor do they put new wine into old wineskins... But they put the... wine into new wineskins, and both are preserved. (Matthew 9:17, cf. Luke 5:37-38)

New wine is the Divine truth in the New Testament, thus in the New Church, and the old wine is the Divine truth in the Old Testament, thus in the old church.

A similar idea is symbolized by these words of the Lord at the wedding in Cana of Galilee:

Every man at the beginning sets out the good wine, and when the guests have well drunk, then the inferior. You have kept the good wine until now! (John 2:1-10)

[4] Something similar is symbolized by the wine in the Lord's parable concerning the man wounded by thieves, on whose wound the Samaritan poured oil and wine (Luke 10:33-34); for the man wounded by thieves means people whom the Jews wounded spiritually by evils and falsities, and to whom the Samaritan brought aid by pouring oil and wine on their wounds, that is, by teaching them goodness and truth, and as far as possible, healing them.

Sacred truth is symbolized by wine and new wine also elsewhere in the Word, as in Isaiah 1:21-22; 25:6; 36:17.

[5] Because of this, a vineyard in the Word symbolizes a church that possesses truths from the Lord.

That wine symbolizes sacred truth can be seen also from its opposite meaning, in which it symbolizes truth falsified and profaned, as in the following places:

Harlotry, wine, and new wine have taken hold of the heart... Their wine is gone, they commit harlotry continually. (Hosea 4:11, 18)

Harlotry symbolizes the falsification of truth, and so, too, do the wine and new wine here.

...in the hand of Jehovah a cup, and He mixed it with wine; He filled it with the mixture and poured it out, and its dregs shall all the wicked of the earth, sucking, drink. (Psalms 75:8)

Babylon was a golden cup in Jehovah's hand, that made all the earth drunk. The nations drank her wine; therefore they are deranged. (Jeremiah 51:7)

Babylon has fallen..., because she has made all nations drink of the wine of the wrath of her fornication... If anyone worships the beast..., he shall also drink of the wine of the wrath of God, which is mixed with undiluted wine in the cup of the wrath (of God). (Revelation 14:8-10)

(Babylon has made) all the nations (drink) of the wine... of her fornication. (Revelation 18:3)

...great Babylon was remembered before God, to give her the cup of the wine of the fury of His wrath. (Revelation 16:19)

...the inhabitants of the earth were made drunk with the wine of her fornication. (Revelation 17:1-2)

[6] The wine that Belshazzar, the king of Babylon, and his lords and wives and concubines drank from the vessels of the Temple in Jerusalem, while they praised the gods of gold, silver, bronze, iron, wood, and stone (Daniel 5:2-4) - that wine symbolized nothing else but the sacred truth of the Word and church profaned, which is why the writing then appeared on the wall, and the king that very night was slain (Daniel 5:25, 30)

Wine symbolizes truth falsified also in Isaiah 5:11-12, 21-22; 28:1, 3, 7; 29:9; 56:11-12.

The drink offering that they poured out as an offering to idols has the same symbolic meaning in Isaiah 65:11; 57:6; Jeremiah 7:18; 44:17-19; Ezekiel 20:28; Deuteronomy 32:38.

It is owing to its correspondence that wine symbolizes sacred truth, and in an opposite sense, truth profaned. For when a person reads "wine" in the Word, angels - who apprehend everything spiritually - have just this interpretation of it. Such is the correspondence between the natural thoughts of people and the spiritual thoughts of angels. The case is the same with the wine in the Holy Supper. That is why the Holy Supper occasions an introduction into heaven (no. 224 at the end).