In Deuteronomy 20:20, bulwarks signify the truth of faith as a protection against false doctrines. (Arcana Coelestia 8581[2])

In Psalm 48:13, this signifies to love the exterior truths which defend the church against falsities. (Apocalypse Explained 223[3], 453[10])

In Isaiah 26:2, bulwarks signify truths.

(Odkazy: Arcana Coelestia 402)

5548. 'And he, he alone, is left' means that this one now exists in place of the internal. This becomes clear from the consideration that because the internal, represented by 'Joseph', was not present and he alone [Benjamin] was born from the same mother, he was now one and the same as Joseph. For 'Joseph' and 'Benjamin' both represent the internal, while 'the remaining ten sons of Jacob' represent the external, 5469.