Ezekiel 5:8

Bands] By some divine restraint Ezekiel would be prevented from turning. The days of thy siege] The number 430 represented the days of the siege of Jerusalem as well as the sum of the years of the two captivities. The actual siege lasted almost exactly a year and a half (2 Kings 25:1; Jeremiah 39:1).

(c) Symbols of Scarcity during the Siege and of Defilement in Captivity (Ezekiel 4:9)

Ezekiel was commanded to prepare bread from a mixture of various kinds of grain, and to live on scanty rations of meat and drink while he lay upon his side. This was in token of the scarcity which the inhabitants of Jerusalem would suffer during the siege. The bread was to be baked with loathsome fuel, as a sign of the banishment of Israel to an unclean foreign land.

In the sight of the nations] Punishment must be as conspicuous as the lost opportunity.