Gad

Numbers 32 is a negotiation. Reuben and Gad, who between them own a great deal of livestock, look at the captured grazing land east of the Jordan and ask Moses to be given it rather than a share on the far side. Moses reacts with fury, telling them they are discouraging the people exactly as the spies did a generation earlier, and that their brothers will go to war while they sit down.

They propose terms. They will build folds for their flocks and towns for their families, then arm themselves and cross ahead of the rest of Israel, and not return until every tribe has its inheritance. Moses accepts, on the record and with a penalty clause, and half the tribe of Manasseh is added to the arrangement. Joshua releases them years later with a commendation for keeping it.

The problem the arrangement created is set out immediately afterwards, in Joshua 22. On the way home the eastern tribes build a large altar by the Jordan. The rest of Israel musters for war on the assumption that a second altar means a second cult, and sends a delegation first. The eastern tribes answer that the altar is not for sacrifice at all but a copy, built as a witness so that in later generations nobody can tell their children they have no share in the God of Israel because a river runs between them.

The anxiety is the point. A boundary of water was understood to be capable of becoming a boundary of religion, and the tribes on the far bank knew it before anyone else did.

In 1868 a black basalt slab was seen at Dhiban, east of the Dead Sea, carrying a long inscription in Moabite. A paper squeeze of the text was taken before the stone was broken up in a local dispute, and the pieces and the squeeze together preserved it. It is the monument of Mesha, king of Moab, describing how he threw off the rule of Israel, and it is the longest royal inscription of the region from that period.

One line concerns Gad directly. Mesha states that the men of Gad had dwelt in the land of Ataroth from of old, and that he took the town and killed its people. That single clause is the earliest mention of the tribe outside the Bible, and it establishes Gad as a real population group holding real ground on the Moabite frontier rather than only a name in a genealogy.

It also explains the tribe's fate. Gad held the tableland of Gilead, the exposed shoulder of Israel, with Moab pressing from the south and Aram and later Assyria from the north and east. Blessings preserved in the Hebrew Bible describe the tribe in exactly those terms, as raided and raiding back. It was among the first territories stripped away in the Assyrian campaigns of the eighth century BCE, and afterwards the name recurs in lists and genealogies rather than in events.

A note on a homonym: the word gad also names fortune, and the Hebrew Bible elsewhere rebukes those who set a table for a deity called Gad. That is a different subject sharing a spelling, not this tribe.