It is often helpful to identify for readers that it is the LORD speaking in this verse. See Good News Translation.

Israel is a hunted sheep driven away by lions may need to be translated as a simile and in the plural: “The people of Israel are like sheep, chased and scattered by lions” (Good News Translation). For lions see 2.15; 49.19.

The king of Assyria conquered Samaria, capital of the northern kingdom of Israel, in 722 B.C.

Devoured; that is, “defeated” or “wiped out” (see verse 7).

Nebuchadrezzar, better known as “Nebuchadnezzar” (see 21.2), captured Jerusalem, capital of the southern kingdom of Judah, in 598 and again in 587 B.C.

The expression gnawed his bones is an image that will probably be clear to most readers, and where this is the case translators can render it quite literally.

Quoted with permission from Newman, Barclay M. and Stine, Philip C. A Handbook on Jeremiah. (UBS Helps for Translators). New York: UBS, 2003. For this and other handbooks for translators see here .