NET
11 Our adversaries also boasted, “Before they are aware or anticipate anything, we will come in among them and kill them, and we will bring this work to a halt!”
Darby
11 And our adversaries said, They shall not know, neither see, till we come into the midst of them and kill them, and put an end to the work.
KJV
11 And our adversaries said, They shall not know, neither see, till we come in the midst among them, and slay them, and cause the work to cease.