'Rivers' or 'floods' signify temptations. 'Rivers' signify truths in abundance serving the rational self, and so, the understanding, for the purpose of doctrine and life.

In Isaiah 43:2, 'rivers' and 'waters' signify difficulties and falsities.

(Referenser: Apocalypse Revealed 683)

In Isaiah 40:9 and Psalm 69:35, this signifies the doctrine of love of the Lord and the neighbor in its entirety as well as the doctrine of the celestial church. (Apocalypse Explained 342, 850[5])