Israel enters a land of Canaanites, seven nations of them, stronger than Israel (Deuteronomy 7:1; Acts 13:19). Taking down seven nations is a sevenfold decreation.
But the land also contains seven fruits – wheat, barley, grapes, figs, pomegranates, olives, honey (Deuteronomy 8:8) – so a new creation awaits once the Canaanites are destroyed.