"E-Tell is believed by some scholars, led by Prof. Rami Arav of the University of Nebraska in Omaha, to have been Geshur’s capital and is also thought to have been, centuries later, the village of Bethsaida, which features prominently in the New Testament. "
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"The preliminary analysis of the pottery dates the fort to the early Iron Age, specifically the 11th or 10th century B.C.E., Tzin says. This, according to the biblical chronology, would have been the time of the great united Israelite monarchy of David and Solomon, and Geshur is mentioned several times in the holy text in connection to this kingdom. For example, King David is said to have married Maakah, the daughter of the king of Geshur (2 Samuel 3:3) and it was to there that their son Absalom was exiled after killing his brother Amnon (2 Samuel 13:23-39)."
https://www.haaretz.com/israel-news/.premium-massive-3-000-year-old-fort-of-biblical-geshur-found-in-israeli-golan-1.9303547