496. These have power to shut heaven, so that no rain falls in the days of their prophecy. (11:6) This symbolically means that people who turn away from these two essential elements of the New Church cannot receive any truth from heaven.

Heaven here means the angelic heaven. Thus the rain symbolizes truth for the church from there. Consequently to close heaven so that no rain falls means, symbolically, that people cannot receive any truth for the church from heaven. Truth for the church from heaven is doctrinal truth from the Word.

We are told that the two witnesses have the power to shut heaven, but as in no. 494 above, the meaning here is not that they have that power, but that people who turn away from the two essential elements of the New Church close heaven to themselves, because they continue to be caught up in their falsities.

That rain symbolizes Divine truth from heaven is clear from the following passages:

My doctrine shall drop as the rain, My word shall fall as the dew... (Deuteronomy 32:2)

(If) you... serve other gods..., (Jehovah will) shut up heaven so that there be no rain... (Deuteronomy 11:16-17, see also 11:11, 11:14)

I will lay waste (My vineyard).... I will also command the clouds that they rain no rain on it. (Isaiah 5:6)

The showers have been withheld, and there has been no late rain. Yet you continue to have a harlot's forehead... (Jeremiah 3:3)

For as the rain comes down... from heaven..., so shall My word (go) forth from My mouth. (Isaiah 55:10-11)

Rejoice then, you children of Zion, and be glad in Jehovah... For He has given you seasonable rain in righteousness. (Joel 2:23)

You have caused to drop, O God, a kindly rain... (Psalms 68:9)

He shall come down like rain upon the grass of the meadow... In His days the righteous shall flourish... (Psalms 72:6-7)

He will come to us as rain, as the late... rain waters the earth. (Hosea 6:3)

...my word shall rain down on them, and they will wait for me as for the rain, and they will open their mouth for the late rain. (Job 29:22-23)

Son of man, say...: "You are a land that is not cleansed, which will have no rain in the day of wrath. There is a conspiracy of her prophets in her midst... (Ezekiel 22:24-25)

And so on elsewhere, as in Isaiah 30:23; Jeremiah 5:24; 10:12-13; 14:3-4; 51:16.

A flooding rain stands for the destruction of truth in Ezekiel 13:11, 13-14; 38:22. For temptation or trial in Matthew 7:24-27.

Earth" is a general word that can be thought of as a container for other more specific words, as ground, field, or garden. Each of these means a person in an ascending series as that person learns truths from the Bible, thinks about them, and tries to apply them to life. The series represents the way of becoming good and wise. "Earth" and "ground" are terms that can go either way, as in the parable of the sower (Matthew 13:4-8) there was both good ground and bad ground, but "field" and "garden" mean minds that are regenerating towards good. "Earth" in the Bible can mean a person or a group of like-minded people as in a church. But it refers specifically to the external of the person's mind, or of the general thought of the group. If heaven and earth are mentioned together, then both the internals and externals of the mind are meant – something to note when reading the creation story.

In Revelation the word "earth" is used both as a ground level as we use it in its natural sense and also as the sense of a group. The action in this book takes place in the great middle zone of the spiritual world, where people first go and where they are sorted out. There are both evil people and good there, and sometimes at the end of a church the evil can have great influence before a great judgment comes. This level of the spiritual realm is called the "earth" to which the dragon was cast down (Revelation 12:9) and to which the stars fell (Revelation 12:4). The "earth" that swallowed the dragon’s flood means those still-sincere people within the church who discounted the flood of the dragon's falsities (Revelation 12:15).