Ezekiel is now among the captives in Babylon; but, as Jeremiah at Jerusalem wrote for the use of the captives though they had Ezekiel upon the spot with them (ch. xxix.), so Ezekiel wrote for the use of Jerusalem, though Jeremiah himself was resident there; and yet they were far from looking upon it as an affront to one another's help both by preaching and writing. Jeremiah wrote to the captives for their consolation, which was the thing they needed; Ezekiel here is directed to write to the inhabitants of Jerusalem for their conviction and humiliation, which was the thing they needed.