Apocalypse Explained #241
241. Verse 18. I counsel thee, signifies the means of reformation of those who are in the doctrine of faith alone. This is evident from what now follows, for the reformation of those who are in that doctrine is now treated of; therefore "I counsel thee" implies precepts as to how such must live that they may be reformed and thus saved.
Waters
'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.
(Riferimenti: Apocalypse Explained 17; Apocalypse Revealed 50; Genesis 8)