Arcana Coelestia#1586
1586. 'That the whole of it was wall-watered' means that they, that is to say, goods and truths, are able to grow there. This becomes clear from the meaning of 'being well-watered', for which see what has appeared already in 108.
Jeremiah 17:7-8
7
Blessed is the man who trusts in Yahweh, and whose trust Yahweh is.
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For he shall be as a tree planted by the waters, who spreads out its roots by the river, and shall not fear when heat comes, but its leaf shall be green; and shall not be careful in the year of drought, neither shall cease from yielding fruit.