Cross reference
Job 41:20
20 Out of his nostrils a smoke goeth, As of a boiling pot and `burning' rushes.
Jeremiah 1:13-14
13 And the word of Jehovah came unto me the second time, saying, What seest thou? And I said, I see a boiling caldron; and the face thereof is from the north.
14 Then Jehovah said unto me, Out of the north evil shall break forth upon all the inhabitants of the land.