1 Samuel 6:18

They also sent gold mice, one for each of the cities ruled by the five Philistine kings, both the fortified towns and the villages without walls. The large rock in the field of Joshua of Bethshemesh, on which they placed the Ark of Jehovah's Covenant, is still there as a witness to what happened.

Deuteronomy 3:5

All of these cities were fortified with high walls and double-door gates with bars across the gates. We also captured a large number of unwalled villages.

Joshua 13:3

from Shihor, which is near Egypt, to the borders of Ekron northward, which is counted to the Canaanite: five lords of the Philistines; the Gazathites, and the Ashdothites, the Eshkalonites, the Gittites, and the Ekronites; also the Avites:

1 Samuel 6:14-16

The cart came to the field of Joshua, a Bethshemite, and stood there. There was a great stone. They cut the wood of the cart and offered the cows as a burnt offering to Jehovah.

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
After the five rulers of the Philistines saw this, they went back to Ekron that same day.
Joshua 13:3
from Shihor, which is near Egypt, to the borders of Ekron northward, which is counted to the Canaanite: five lords of the Philistines; the Gazathites, and the Ashdothites, the Eshkalonites, the Gittites, and the Ekronites; also the Avites: