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])

(References: Arcana Coelestia 3068)

In Numbers 31:5, Numbers 32:17, this signifies prepared to accept knowledges of truth. (Apocalypse Explained 430[11])

(References: Arcana Coelestia 2162; Daniel 10:6)