Ezekiel 4:3-6

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. Moreover lie thou upon thy left side, and lay the iniquity of the house of Israel upon it; according to the number of the days that thou shalt lie upon it, thou shalt bear their iniquity. For I have appointed the years of their iniquity to be unto thee a number of days, even three hundred and ninety days: so shalt thou bear the iniquity of the house of Israel. And again, when thou hast accomplished these, thou shalt lie on thy right side, and shalt bear the iniquity of the house of Judah: forty days, each day for a year, have I appointed it unto thee.