Jeremiah had reason to caution with the king for his life, considering the easy answer of the king to the princes, moving for his death, Jeremiah 38:4,5. We must imagine Jeremiah at this time under no Divine command to reveal God's will in this case unto the king. Wilt thou not? is here as much as thou wilt not hearken unto me. Zedekiah had often been advised by the prophet, but would never take his advice, and the prophet knew it would be the same case still, that the king would be overruled by a corrupt court, and his own aversion, to change his state, as a king, for the state of a prisoner.
Related Commentaries of Jeremiah 38:15
Jeremiah 38:15
15 Then Jeremiah said unto Zedekiah, If I declare it unto thee, wilt thou not surely put me to death? and if I give thee counsel, wilt thou not hearken unto me?