In John 2:6, 7, the water pots signify external knowledges; which may be filled with truths. They also signify all those features of the Word, and so of the Jewish church and its worship, which were signified and represented by Divine things in the Lord and from the Lord. (Apocalypse Explained 376[29])

(Referencat: Arcana Coelestia 3068)

In Jeremiah 31:9, this signifies spiritual good and truth. (Arcana Coelestia 3325)