Albert Barnes Commentary Jeremiah 20:5

"Moreover I will give all the riches of this city, and all the gains thereof, and all the precious things thereof, yea, all the treasures of the kings of Judah will I give into the hand of their enemies; and they shall make them a prey, and take them, and carry them to Babylon." — Jeremiah 20:5 (ASV)

All the strength - “ All the stores.”

The labors - The gains of the citizens.