As the finest of the grains, wheat fittingly represents the finest of spiritual food, what Swedenborg calls "the good of love and charity" – which is the desire for good that springs from love of the Lord and love of serving others.

From a nutritional standpoint, wheat is packed with complex carbohydrates, a good source of lasting energy – and the desire for good from love of the Lord and love of the neighbor is a good source of lasting spiritual energy. Yet the carbohydrate-rich heart of each grain of wheat is covered by a hull rich with vitamins, protein and fiber, building blocks for the body – much as the desire for good is clothed in ideas of how to put good into action.

(Referencias: Apocalypse Explained 374; Apocalypse Revealed 315; Arcana Coelestia 3941 [1-9], 7605, 9995)

315. "A quart of wheat for a denarius, and three quarts of barley for a denarius." This symbolically means, because the value these people placed on goodness and truth was so little as to be scarcely anything.

This is the symbolic meaning because a quart, which is a measure and its contents, symbolizes the character of a thing, as shown in no. 313 above. Wheat and barley symbolize goodness and truth, and a denarius, being a very small coin, symbolizes a value so little as to be scarcely anything.

Three quarts of barley are specified because the number three symbolizes all and is predicated of truths (no. 400).

Wheat and barley symbolizes goodness and truth, here the goodness and truth of the church acquired from the Word, because everything connected with a field or vineyard symbolizes something having to do with the church - a field symbolizing the church in respect to its goodness and consequent truth, and a vineyard symbolizing the church in respect to its truth and consequent goodness. Therefore, where these are mentioned in the Word, angels, who perceive everything spiritually, have no other understanding of them - as for example in Joel:

The field is wasted, the land mourns, because the grain is wasted, the new wine is dried up, the oil fails. Ashamed are the farmers, the vinedressers wail, over the wheat and the barley, because the harvest of the field has perished. (Joel 1:10-12)

All of these things symbolize things having to do with the church.

[2] That wheat and barley symbolize the goodness and truth of the church can be seen from the following passages:

(John said of Jesus that He would) gather his wheat into the granary and burn the chaff with fire... (Matthew 3:11-12)

(Jesus said,) "Let (weed and wheat) grow together..., and at the time of harvest I will say to the reapers, 'First gather together the weeds... to burn them, but gather the wheat into my granary.'" (Matthew 23:24-30)

...I have heard from Jehovah God... a consummation and determination... Plant the measured wheat, and the appointed barley... (Thus) He instructs him for judgment; His God teaches him. (Isaiah 28:21-26)

...Jehovah... will bring you into... a land of wheat and barley... (Deuteronomy 8:7-8)

The land of wheat and barley here is the land of Canaan, which symbolizes the church.

They shall come and sing in the height of Zion, and shall flow together to the goodness of Jehovah, for wheat and new wine... (Jeremiah 31:12)

(Jehovah) will fill you with the finest wheat. (Psalms 147:12-14, cf. Deuteronomy 32:13-14, Psalms 81:13, 16)

Jehovah told the prophet Ezekiel to make himself a cake of barleycorn mixed with dung and eat it (Ezekiel 4:12, 15). And He told the prophet Hosea to take to himself an adulterous woman, whom he bought for one and a half omers of barleycorn (Hosea 3:1-2). The prophets did these things to represent the falsifications of truth in the church, for barleycorns are truths, and barleycorns mixed with dung are truths falsified and profaned. An adulterous woman also symbolizes truth falsified (no. 134).