Prepare - i. e., consecrate, see Jeremiah 6:4 note.
Thy choice cedars - The chief members of the royal lineage and the leading officers of state.
Related Commentaries of Jeremiah 22:7
Jeremiah 22:7
7 And I will prepare destroyers against thee, every one with his weapons: and they shall cut down thy choice cedars, and cast them into the fire.