Then the LORD said, “This is how the Israelites will eat their defiled bread among the nations to which I will banish them.”
The best exposition of this part of Ezekiel's prediction of Jerusalem's desolation is Jeremiah's lamentation of it, Lam 4:3, Lam 4:4, etc., and Lam 4:10, where he pathetically describes the terrible famine that was in Jerusalem during the siege and the sad effects of it. I.
Commenting on Ezekiel 4:9-17
And the Lord said, even thus shall the children of Israel,.... Not the ten tribes only, or those who were among the other two, but all the Jews in captivity: eat the defiled bread among the Gentiles, whither I will drive them; so called, not because mixed, but baked in the above manner; which was a symbol of the defilements which they should contract upon...
Implying that Israel's peculiar distinction was to be abolished and that they were to be outwardly blended with the idolatrous heathen (Deu 28:68; Hos 9:3).