As a lion in the forest. — i.e., fierce, wild, untamed, uttering its sharp yells of passion. That mood was utterly unlovable, and therefore, speaking after the manner of men, the love which Jehovah had once felt for it was turned to hatred.
Related Commentaries of Jeremiah 12:8
Jeremiah 12:8
8 Mine heritage is unto me as a lion in the forest; it crieth out against me: therefore have I hated it.