who were rebuilding the wall. The laborers who carried materials worked with one hand and held a weapon with the other.
KJV
They which builded on the wall, and they that bare burdens, with those that laded, [every one] with one of his hands wrought in the work, and with the other [hand] held a weapon.
ASV
They all builded the wall and they that bare burdens laded themselves; every one with one of his hands wrought in the work, and with the other held his weapon;