O my mountain in the field - i. e., Jerusalem or Zion, called the Rock of the Plain in Jeremiah 21:13. “The field” is the open unenclosed country, here contrasted with the privileged height of Zion.
Or sin - i. e., because of thy sin.
Related Commentaries of Jeremiah 17:3
Jeremiah 17:3
3 O my mountain in the field, I will give thy substance and all thy treasures to the spoil, and thy high places for sin, throughout all thy borders.