For thus saith the LORD, Thy bruise is incurable, and thy wound is grievous. Thy bruise is incurable. The desperate circumstances of the Jews are here represented as an incurable wound. Their sin is so grievous that their hope of the punishment (their exile) soon coming to an end is vain (Jeremiah 8:22; Jeremiah 15:18; 2 Chronicles 36:16).
Related Commentaries of Jeremiah 30:12
Jeremiah 30:12
12 For thus saith the LORD, Thy bruise is incurable, and thy wound is grievous.