Nehemiah 4:11

And our adversaries said, they shall not know
Our designs upon them:

neither see;
or perceive what we are about to do:

till we come in the midst of them;
with an army suddenly, at an unawares, and unexpected:

and slay them;
they being unarmed, and not prepared to defend themselves:

and cause the work to cease;
as it must in course, the builders being slain.