41 And you, O mortal, take a brick and set it before you. On it portray a city, Jerusalem; 2 and put siegeworks against it, and build a siege wall against it, and cast up a ramp against it; set camps also against it, and plant battering rams against it all around. 3 Then take an iron plate and place it as an iron wall between you and the city; set your face toward it, and let it be in a state of siege, and press the siege against it. This is a sign for the house of Israel. 4 Then lie on your left side, and place the punishment of the house of Israel upon it; you shall bear their punishment for the number of the days that you lie there. 5 For I assign to you a number of days, three hundred ninety days, equal to the number of the years of their punishment; and so you shall bear the punishment of the house of Israel. 6 When you have completed these, you shall lie down a second time, but on your right side, and bear the punishment of the house of Judah; forty days I assign you, one day for each year. 7 You shall set your face toward the siege of Jerusalem, and with your arm bared you shall prophesy against it. 8 See, I am putting cords on you so that you cannot turn from one side to the other until you have completed the days of your siege.
Matthew Henry's Commentary on Ezekiel 4:1-8
Commentary on Ezekiel 4:1-8
(Read Ezekiel 4:1-8)
The prophet was to represent the siege of Jerusalem by signs. He was to lie on his left side for a number of days, supposed to be equal to the years from the establishment of idolatry. All that the prophet sets before the children of his people, about the destruction of Jerusalem, is to show that sin is the provoking cause of the ruin of that once flourishing city.