In that day shall thy mouth be opened - What is, When some one who shall have escaped from Jerusalem, having arrived among the captives, shall inform them of the destruction of the city, the temple, the royal family, and the people at large; till then he might suppress his tears and lamentations. And we find from Ezekiel 33:21, that one did actually escape from the city, and informed the prophet and his brethren in captivity that the city was smitten.
Thus he was not only a prophet to foretell such things, but he was also a sign or portent, shadowing them out by circumstances in his own person and family; and thus the prediction, agreeing so perfectly with the event, proved that the previous information was from the Lord.
The death of Ezekiel‘s wife took place in the evening of the same day that he delivered the foregoing prophecy. This event was to signify to the people that the Lord would take from them all that was most dear to them; and - owing to the extraordinary nature of the times - quiet lamentation for the dead, according to the usual forms of mourning, would be impossible.
Ezekiel 24:17
The priest in general was to mourn for his dead (Leviticus 21:1 ff); but Ezekiel was to be an exception to the rule. The “tire” was the priest‘s mitre.
Eat not the bread of men - Food supplied for the comfort of the mourners.
Ezekiel 24:23
Pine away - Compare Leviticus 26:39. The outward signs of grief were a certain consolation. Their absence would indicate a heart-consuming sorrow.
Ezekiel 24:27
Ezekiel had been employed four years in foretelling the calamities about to come to pass. He had been utterly disregarded by the inhabitants of Jerusalem, and received with apparent respect but with real incredulity by those in exile. Now until the city had been actually taken, the voice of prophecy should cease, so far as God‘s people were concerned. Hence the intervening series of predictions relating to neighboring and foreign nations Ezekiel 2532. After which the prophet‘s voice was again heard addressing his countrymen in their exile. This accounts for the apparently parenthetical character of the next eight chapters.