Deuteronomy 28:52-53

52And they shall besiege thee in all thy gates, until thy high and fortified walls come down, wherein thou trustedst, throughout all thy land; and they shall besiege thee in all thy gates throughout all thy land, which Jehovah thy God hath given thee. 53And thou shalt eat the fruit of thine own body, the flesh of thy sons and of thy daughters, whom Jehovah thy God hath given thee, in the siege and in the distress wherewith thine enemies shall distress thee.