Joshua 1:4
From the wilderness and this Lebanon even unto the great river, the river Euphrates, all the land of the Hittites, and unto the great sea toward the going down of the sun, shall be your coast.
Cross-reference
Joshua 11:17 describes the actual conquered territory from Baal-gad to Mount Halak, fulfilling the promised boundaries.
Joshua 12:7 echoes the same geographic range of conquered kings, confirming the land promised.
Genesis 15:18-21 details the boundaries from Euphrates to Egypt — the exact land promised here.
Exodus 23:31 sets borders from Red Sea to Euphrates — parallel promise to Joshua 1:4.
Deuteronomy 1:7 commands possession of Lebanon to Euphrates — same territorial promise.
Deuteronomy 11:24 promises every footstep from wilderness to Euphrates — directly echoed in Joshua 1:4.
1 Chronicles 18:3 records David's conquest reaching the Euphrates, fulfilling the land promise given here.
Numbers 34:6 defines the western border as the Great Sea — identical to the boundary stated here.
1 Kings 4:21 shows Solomon's dominion from the Euphrates to Egypt — a later fulfillment of the land promise.
Numbers 34:2-18 defines Canaan's boundaries — narrower than the extended borders here (to Euphrates).
Ezra 4:20 refers to the land 'Beyond the River' — the same region promised here, now under later foreign rule.