Ezekiel 4:1 ASV

¹  Thou also, son of man, take thee a tile, and lay it before thee, and portray upon it a city, even Jerusalem:

²  and lay siege against it, and build forts against it, and cast up a mound against it; set camps also against it, and plant battering rams against it round about.

³  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.