Ezekiel 4:6-8

6And again, when thou hast accomplished these, thou shalt lie on thy right side, and shalt bear the iniquity of the house of Judah: forty days, each day for a year, have I appointed it unto thee. 7And thou shalt set thy face toward the siege of Jerusalem, with thine arm uncovered; and thou shalt prophesy against it. 8And, behold, I lay bands upon thee, and thou shalt not turn thee from one side to the other, till thou hast accomplished the days of thy siege.