^15-18 Our enemies learned that we knew all about their plan and that God had frustrated it. And we went back to the wall and went to work. From then on half of my young men worked while the other half stood guard with lances, shields, bows, and mail armor. Military officers served as backup for everyone in Judah who was at work rebuilding the wall. The common laborers held a tool in one hand and a spear in the other. Each of the builders had a sword strapped to his side as he worked. I kept the trumpeter at my side to sound the alert.