The 'city of Judah,' as in Isaiah 40:9, signifies the doctrine of love towards the Lord and love towards our neighbor.

(Odkazy: Apocalypse Explained 850)

1649. What is remarkable, speech with a cadence like the rhythmic or harmonic patterns of songs comes naturally to spirits. They speak to one another in this way, though they are not conscious of doing so. Souls enter into that style of speaking immediately after death. I too have been initiated into the same till at length it has become quite familiar. The reason it is of this nature is that they speak as a community, though for the most part they are not conscious of doing so - a very clear sign that all are distinguished into separate communities and that consequently everything takes on the forms of those communities.