Adam Clarke on Judges 16:30

So the dead which he slew - We are informed that the house was full of men and women, with about three thousand of both sexes on the top; now as the whole house was pulled down, consequently the principal part of all these were slain; and among them we find there were the lords of the Philistines. The death of these, with so many of the inferior chiefs of the people, was such a crush to the Philistine ascendancy, that they troubled Israel no more for several years, and did not even attempt to hinder Samson's relatives from taking away and burying his dead body.