1 Samuel 6:18

and the golden mice, according to the number of all the cities of the Philistines belonging to the five lords, both of fortified cities and of country villages. The large stone on which they set the ark of the Lord is a witness to this day in the field of Joshua the Beth-shemite.

Deuteronomy 3:5

All these were cities fortified with high walls, gates and bars, besides a great many unwalled towns.

Joshua 13:3

from the Shihor which is east of Egypt, even as far as the border of Ekron to the north (it is counted as Canaanite); the five lords of the Philistines: the Gazite, the Ashdodite, the Ashkelonite, the Gittite, the Ekronite; and the Avvite

1 Samuel 6:14-16

The cart came into the field of Joshua the Beth-shemite and stood there where there was a large stone; and they split the wood of the cart and offered the cows as a burnt offering to the Lord.

Treasury of Scripture Knowledge

Summary

And the golden mice, according to the number of all the cities of the Philistines belonging to the five lords, both of fenced cities, and of country villages, even unto the great stone of Abel, whereon they set down the ark of the LORD: which stone remaineth unto this day in the field of Joshua, the Bethshemite.

The five lords

Bible References

The five lords

1 Samuel 6:16
When the five lords of the Philistines saw it, they returned to Ekron that day.
Joshua 13:3
from the Shihor which is east of Egypt, even as far as the border of Ekron to the north (it is counted as Canaanite); the five lords of the Philistines: the Gazite, the Ashdodite, the Ashkelonite, the Gittite, the Ekronite; and the Avvite