The Great Sea functions in the territorial language of Deuteronomy as Canaan’s western boundary, helping define the extent of the inheritance promised to Israel. More than a distant landmark, it gives the land’s eastern and western limits a legible shape within a larger account of covenant, settlement, and collective identity.

The Western Border of Canaan

The clearest geographical definition appears in the description of Canaan’s borders: the Great Sea is designated as the western border. The account traces the land’s south, west, north, and east boundaries, moving from the wilderness of Zin and the Brook of Egypt at the south to the sea at the west, then naming northern and eastern lines that reach the Jordan and the Salt Sea. The sea therefore anchors one side of a carefully delimited territory rather than serving merely as a general indication of direction.

The description is framed as an inheritance assigned by divine command. Moses tells the people that the land within these borders is to be received by lot, while the two and a half tribes already possess their inheritance east of the Jordan, opposite Jericho. The Great Sea’s role is thus both geographical and political: it marks the western edge of the territory apportioned to the tribes.

Territorial Promise and Collective Memory

Elsewhere in Deuteronomy, the Great Sea belongs to a broader formulation of the land promised to Israel. The people are told that every place on which they set foot will be theirs, with the reach of the territory expressed from the wilderness and Lebanon to the Euphrates and the hinder sea. The image widens the prospect beyond the detailed border survey, presenting the land as an expansive gift tied to obedience and divine support.

This territorial language is bound to the remembered covenant at Horeb and to the people’s departure from Egypt. Moses recalls that the people heard the LORD speak from the fire, and that he stood between them to convey the words because they feared approaching the mountain. In the same teaching, the Shema commands devotion to the LORD and the transmission of the commandments to children. Against this covenantal framework, the sea-bound inheritance represents not simply a location but the setting in which Israel is to live out its obligations.

A Boundary with Conditions

The promise of the land is repeatedly paired with conditions and consequences. The people are instructed to destroy the images and worship sites of the nations they are to dispossess, to avoid serving other gods, and to keep the commandments. Obedience brings blessing; turning aside to other gods brings a curse. The Great Sea’s boundary consequently belongs to a territorial promise that is neither detached from conduct nor guaranteed without qualification.

The text also warns that corruption and idolatry would bring expulsion from the land and dispersion among other peoples, while promising that those who seek the LORD in distress may find mercy and that the covenant will not be forgotten. This contrast gives the mapped inheritance a vulnerable as well as a hopeful character: its boundaries define the people’s home, while covenant faithfulness governs their continued possession of it.