'Waters' particularly signify the spiritual parts of a person, or the intellectual aspects of faith, and also their opposites.

'The waters above the firmament,' as in Genesis 1:7, signify the knowledges in the internal self, and 'the waters beneath the firmament' signify the knowledges of the external self.

'Waters,' as in Ezekiel 47:9, refer to the New Jerusalem, and they signify spiritual things from a celestial origin.

'Many waters,' as in Revelation 17:1, signify truths of the Word adulterated. 'Waters' or 'rivers' signify spiritual, rational, or scientific things pertaining to truth.

'Waters … that go softly,' as in Isaiah 8:6-7, signify spiritual things, and 'waters … strong and many,' signify falsities.

'Waters,' as in Psalms 104:3, signify divine truths.

'Waters' signify truths in the natural self, and in the opposite sense, falsities.

'The waters were dried up from off the earth,' as in Genesis 8:7, signifies the apparent dissipation of falsities.

(Odkazy: Apocalypse Explained 17; Apocalypse Revealed 50; Genesis 8)

50. And His voice as the sound of many waters. This symbolizes natural Divine truth.

A voice, when coming from the Lord, symbolizes Divine truth, as may be seen in no. 37 above. Waters symbolize truths, and specifically natural truths, which are concepts from the Word, as follows from many passages in the Word, of which we cite only the following:

...the earth is full of the knowledge of Jehovah, as the waters cover the sea. (Isaiah 11:9)

With joy you will draw water from the wells of salvation. (Isaiah 12:3)

He who walks righteously and speaks uprightly...: bread will be given him, (and) his water will be constant. (Isaiah 33:15-16)

The poor and needy seek water, but there is none; their tongue fails for thirst... I will open rivers in high places, and fountains in the midst of the valleys; I will turn the wilderness into a pool of water, and the dry land into springs of water..., that they may see, know, consider and understand... (Isaiah 41:17-18, 20)

I will pour out water on him who is thirsty, and streams on the dry ground; I will pour out My Spirit... (Isaiah 44:3)

...your light shall rise in the darkness..., that you may be like a watered garden, and like an issue of water, whose waters do not deceive. (Isaiah 58:10-11)

...My people have committed two evils: they have forsaken Me, the fountain of living waters, and hewn themselves cisterns... that hold no water. (Jeremiah 2:13)

Their great ones have sent their young ones for water. They went to the cisterns and found no water. Their vessels came back empty. (Jeremiah 14:3)

...they have forsaken Jehovah, the fountain of living waters. (Jeremiah 17:13)

They shall come with weeping, and with prayers I will lead them. I will lead them to a fountain of waters, in the way of rectitude... (Jeremiah 31:9)

...I will break the staff of bread... and they shall drink water by measure and with astonishment..., so that... they waste away because of their iniquities. (Ezekiel 4:16-17; cf. 12:18-19, Isaiah 51:14)

Behold, the days will come... when I will send hunger on the land, not a hunger for bread, nor a thirst for water, but for hearing the words of Jehovah. They shall wander from sea to sea, and... shall run to and fro, to hear the word of Jehovah, but shall not find it. In that day the... young women and the young men shall faint for thirst. (Amos 8:11-13)

In that day... living waters shall flow from Jerusalem... (Zechariah 14:8)

Jehovah is my shepherd..., He leads me to still waters. (Psalms 23:1-2)

They did not thirst...; He caused waters to flow from the rock for them, and He split the rock, so that waters gushed out. (Isaiah 48:21)

O God..., in the morning will I seek You; My soul thirsts...; ...(I am) weary, without water. (Psalms 63:1)

(Jehovah) sends out His word...; He causes (the) wind to blow, so that the waters flow. (Psalms 147:18)

Praise (Jehovah), you heavens of heavens, and you waters from above the heavens! (Psalms 148:4)

(Jesus sitting by Jacob's well said to the woman,) "Everyone who drinks of this water will thirst again, but whoever drinks of the water that I shall give him will not thirst to eternity. And the water that I shall give him will become in him a fountain of water springing up into everlasting life." (John 4:7-15)

(Jesus said,) "If anyone thirsts, let him come to Me and drink. Whoever believes in Me, as the Scripture says, out of his belly will flow rivers of living water." (John 7:37-38)

To him who thirsts I will give of the fountain of the water of life freely. (Revelation 21:6)

He showed (him) a... river of the water of life..., proceeding from the throne of God and of the Lamb. (Revelation 22:1)

And the Spirit and the bride say, "Come!" And let him who hears say, "Come!" And let him who thirsts come. And whoever desires, let him take the water of life freely. (Revelation 22:17)

Waters in these passages mean truths, and it is apparent from this that the sound of many waters means the Lord's Divine truth in the Word, as also in the following places:

Behold, the glory of the God of Israel came from the way of the east, and His voice was like the sound of many waters; and the earth was illumined by His glory. (Ezekiel 43:2)

I heard a voice from heaven, like the sound of many waters... (Revelation 14:2)

The voice of Jehovah is on the waters...; Jehovah is on many waters. (Psalms 29:3)

When it is known that waters in the Word mean truths in the natural self, it can be seen what washings in the Israelite Church symbolized, and also what baptism symbolizes, and moreover what is symbolically meant by these words of the Lord in John,

Unless one is born of water and the Spirit, he cannot enter the kingdom of God. (John 3:5)

"Of water" means, symbolically, "by truths," and "of the Spirit" means, symbolically, "by a life in accordance with them."

In an opposite sense, waters symbolize falsities, as we will see in subsequent explanations.