Ezekiel 4:2

Cast up. The ditch would be about three feet deep, and the earth being thrown up, people might approach the town with less danger. (Worthington) --- The besieged were thus also prevented from going out, 4 Kings xxv. 1. Forts or towers were erected to overlook and clear the walls. --- Rams. This is the first time we find them mentioned. Homer is silent about them; (Calmet) and the ancient sieges lasted so long, because people had not found out the art of demolishing the walls. (Diodorus ii.)