Matthew 23:33
Book: Matthew 23
Ye serpents, ye offspring of vipers, how shall ye escape the judgment of hell?
Ezekiel 4:3
Book: Ezekiel 4
And take thou unto thee an iron pan, and set it for a wall of iron between thee and the city: and set thy face toward it, and it shall be besieged, and thou shalt lay siege against it. This shall be a sign to the house of Israel.