Tribe of Gad

In the First Book of Samuel, King Nahash of Ammon appears abruptly as the attacker of Jabesh-Gilead, which lay outside the territory he laid claim to.

Having subjected the occupants to a siege, the population sought terms for surrender, and were told by Nahash that they had a choice of death (by the sword) or having their right eyes gouged out.

The occupants sought help from the people of Israel, sending messengers throughout the whole territory, and Saul, a herdsman at this time, responded by raising an army which decisively defeated Nahash and his cohorts at Bezek.

A more complete explanation came to light with the discovery of the Dead Sea Scrolls: although not present in either the Septuagint or masoretic text, an introductory passage, preceding this narrative, was found in a copy of the Books of Samuel among the scrolls found in cave 4:[1] [N]ahash, king of Ammonites would put hard pressure on the descendants of Gad and the descendants of Ruben and would gouge everyone's right eye out, but no res(cuer) would be provided for Israel and there was not left anyone among the children of Israel in the Tr(ans Jordan) whose right eye Nahash the king of Ammonites did not gouge out but be(hold) seven thousand men (escaped the power of) Ammonites and they arrived at (Ya)besh Gilead.

However, in the case of the Tribes of Gad, Reuben and half of Manasseh, Moses allocated land to them on the eastern side of the Jordan River and the Dead Sea (Joshua 13:24–28).

The Tribe of Gad was allocated the central region of the three, east of Ephraim and West Manasseh, though the exact location is ambiguous.

[3] Among the cities mentioned in Numbers 32:34 as having at some point been part of territory of the Tribe of Gad were Ramoth, Jaezer, Aroer, and Dibon, though some of these are marked in Joshua 13:15–16 as belonging to Reuben.

Classical rabbinical literature regards this selection of the other side by Gad as something for which they should be blamed, remarking that, as mentioned in Ecclesiastes, the full stomach of the rich denies them sleep.

The manner of the exile led to the further history of the tribe being lost, and according to the Book of Jeremiah, their former lands were (re)conquered by the Ammonites.

Territory of Gad on an 1852 map
Map of the tribes of Israel, with Gad shaded green, in the east
Moses counting Gad's kin