At the remains of an ancient metropolis in southern Israel village of Tel El-Safi, archaeologists are piecing together the history of a people remembered chiefly as the bad guys of the Hebrew Bible.

The city of Gath, where the annual digging season began this week, is helping scholars paint a more nuanced portrait of the Philistines, who appear in the biblical story as the perennial enemies of the Israelites.

Close to three millennia ago, Gath was on the frontier between the Philistines, who occupied the Mediterranean coastal plain, and the Israelites, who controlled the inland hills. The city’s most famous resident, according to the Book of Samuel, was Goliath — the giant warrior improbably felled by the young shepherd David and his sling.

The Philistines “are the ultimate other, almost, in the biblical story,” said Aren Maeir of Bar-Ilan University, the archaeologist in charge of the excavation.

The latest summer excavation season began this past week, with 100 diggers from Canada, South Korea, the United States and elsewhere, adding to the wealth of relics found at the site since Maier’s project began in 1996.

In a square hole, several Philistine jugs nearly 3,000 years old were emerging from the soil. One painted shard just unearthed had a rust-red frame and a black spiral: a decoration common in ancient Greek art and a hint to the Philistines’ origins in the Aegean.

The Philistines arrived by sea from the area of modern-day Greece around 1200 B.C. They went on to rule major ports at Ashkelon and Ashdod, now cities in Israel, and at Gaza, now part of the Palestinian territory known as the Gaza Strip.

At Gath, they settled on a site that had been inhabited since prehistoric times. Digs like this one have shown that though they adopted aspects of local culture, they did not forget their roots. Even five centuries after their arrival, for example, they were still worshipping gods with Greek names.

Archaeologists have found that the Philistine diet leaned heavily on grass pea lentils, an Aegean staple. Ancient bones discarded at the site show that they also ate pigs and dogs, unlike the neighboring Israelites, who deemed those animals unclean — restrictions that still exist in Jewish dietary law.

Diggers at Gath have also uncovered traces of a destruction of the city in the 9th century B.C., including a ditch and embankment built around the city by a besieging army — still visible as a dark line running across the surrounding hills.

The razing of Gath at that time appears to have been the work of the Aramean king Hazael in 830 B.C., an incident mentioned in the Book of Kings.