Thus saith the LORD; Again there shall be heard in this place, which ye say shall be desolate without man and without beast, even in the cities of Judah, and in the streets of Jerusalem, that are desolate, without man, and without inhabitant, and without beast,
Jeremiah 33:8 And I will cleanse them from all their iniquity, whereby they have sinned against me; and I will pardon all their iniquities, whereby they have sinned, and whereby they have transgressed against me.
Jeremiah 33:9 And it shall be to me a name of joy, a praise and an honour before all the nations of the earth, which shall hear all the good that I do unto them: and they shall fear and tremble for all the goodness and for all the prosperity that I procure unto it.
Jeremiah 33:10 Thus saith the LORD; Again there shall be heard in this place, which ye say shall be desolate without man and without beast, even in the cities of Judah, and in the streets of Jerusalem, that are desolate, without man, and without inhabitant, and without beast,
Jeremiah 33:11 The voice of joy, and the voice of gladness, the voice of the bridegroom, and the voice of the bride, the voice of them that shall say, Praise the LORD of hosts: for the LORD is good; for his mercy endureth for ever: and of them that shall bring the sacrifice of praise into the house of the LORD. For I will cause to return the captivity of the land, as at the first, saith the LORD.
Jeremiah 33:12 Thus saith the LORD of hosts; Again in this place, which is desolate without man and without beast, and in all the cities thereof, shall be an habitation of shepherds causing their flocks to lie down.
The verse centers on "thus", "saith", "lord", "again", "shall", "heard", and "place". It is saying that the verse draws attention to "thus" and "saith", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 9's "And it shall be to me a..." into verse 11's "The voice of joy and the voice...", so "thus" and "saith" belong inside that flow. In Jeremiah context, the local focus is covenant, worship, and faithfulness.
A plain takeaway is to answer the verse's own emphasis on "thus" and "saith" with trust shaped by these words, not by a vague optimism outside the passage.