And they took the things which Micah had made, and the priest which he had, and came unto Laish, unto a people that were at quiet and secure: and they smote them with the edge of the sword, and burnt the city with fire. Unto a people - at quiet and secure - They found the report given by the spies to be correct. The people were apprehensive of no danger, and were unprepared for resistance; hence they were all put to the sword, and their city burnt up.
Related Commentaries of Judges 18:27
Judges 18:27
27 And they took the things which Micah had made, and the priest which he had, and came unto Laish, unto a people that were at quiet and secure: and they smote them with the edge of the sword, and burnt the city with fire.