In Daniel 10:5, Tarshish and Uphaz signify the good of wisdom is from love. (Arcana Coelestia 3021[7])

In Jeremiah 10:9, this signifies what appears as good in external form, because from the letter of the Word. (Arcana Coelestia 9466[5], Apocalypse Explained 576[7])

Uphaz signifies the evil of religion and of worship confirmed by the letter of the Word. (Apocalypse Explained 585[10])

Uphaz signifies the good of the Word falsified. (Apocalypse Explained 587[6])

In Jeremiah 10:9, 'silver from Tarshish' signifies the truth of the Word in its literal sense, and 'gold from Uphaz,' the good of the Word in the literal sense.

(References: Apocalypse Explained 585)