'Walls' in the Bible

All these are cities fenced with high walls, two-leaved doors and bar, apart from cities of villages very many;

'And it hath laid siege to thee in all thy gates, till thy walls come down, the high and the fenced ones in which thou art trusting, in all thy land; yea, it hath laid siege to thee in all thy gates, in all thy land, which Jehovah thy God hath given to thee;