Tell es Safi is identified with anciebt Gath/Geth, one of the five cities in the ancient Canaanite and Philistine Pentapolis (along with Gaza, Ekron, Ashkelon, and Ashdod).
See:
- https://en.wikipedia.org/wiki/Gath_(city)
- Aren Maeir, Gath in Oxford Encyc Bible and Archaeology, 2013 - https://www.academia.edu/5800332/
- http://www.bibleplaces.com/gath/
- Yigal Levin, Philistine Gath in the Biblical Record in: – Tell es-Safi/Gath in the Medieval and Modern Periods, Ägypten und Altes Testament 69, 2012 - https://www.academia.edu/1596492