21. So we laboured. A summary of 16-20.
Till the stars appeared. Construction went forward from dawn till dusk; the men worked under pressure to complete the task. In view of the fact that enemy forces were lurking in the vicinity, speed was of the utmost importance. Every stone laid added to the security of the city. Night shifts were hardly possible in ancient times, but full advantage was taken of the first and last rays of light each day.