3. iron pan—the divine decree as to the Chaldean army investing the city.
set it for a wall of iron between thee and the city—Ezekiel, in the person of God, represents the wall of separation between him and the people as one of iron: and the Chaldean investing army. His instrument of separating them from him, as one impossible to burst through.
set … face against it—inexorably (Ps 34:16). The exiles envied their brethren remaining in Jerusalem, but exile is better than the straitness of a siege.