'The children of Israel,' in Isaiah 14:2, signify the Gentiles.

In Jeremiah 23:8, 'Israel' represents the spiritual natural church.

(Referencat: Apocalypse Explained 768)

In Genesis 23:2, mourn relates to good or evil, and weep to truth or falsity. (Doctrine Regarding Sacred Scripture 84)

In Revelation 18:8, this symbolizes an inner anguish owing to being in a state of poverty and wretchedness instead of wealth. (Apocalypse Revealed 764, 765)