Ezekiel 4:3-6

And you, take an iron griddle, and place it as an iron wall between you and the city; and 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. “Then lie on your left side, and place the punishment of the house of Israel upon it. For the number of the days that you lie on it, you shall bear their punishment. For I assign to you a number of days, 390 days, equal to the number of the years of their punishment. So long shall you bear the punishment of the house of Israel. And 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, a day for each year.