5 Mose 18:7

⁷ daß er diene im Namen des HERRN, seines Gottes, wie alle seine Brüder, die Leviten, die daselbst vor dem HERR stehen:

Mourn and weep

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)