27 Then they took what Micah had made, and his priest, and went on to Laish, against a people at peace and secure. They attacked them with the sword and burned down their city.

Read Judges 18:27 Using Other Translations

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.
But the people of Dan took what Micah had made, and the priest who belonged to him, and they came to Laish, to a people quiet and unsuspecting, and struck them with the edge of the sword and burned the city with fire.
Then, with Micah’s idols and his priest, the men of Dan came to the town of Laish, whose people were peaceful and secure. They attacked with swords and burned the town to the ground.