Jericho
'Jericho' generally signifies the good of truths.
In Luke 10:30, this signifies the church in possession of the knowledges of truth and good.
In Joshua 6:1, 'Jericho' signifies instruction and the good of life because no one can be instructed in the truths of doctrine but he who is in the good of life. In an opposite sense, it signifies the profanation of truth and good. (Apocalypse Explained 700)
(Notae: Luke 10)
Deuteronomy 7:3-4
3
neither shall you make marriages with them; your daughter you shall not give to his son, nor shall you take his daughter for your son.
4
For he will turn away your son from following me, that they may serve other gods: so the anger of Yahweh would be kindled against you, and he would destroy you quickly.