Josué 1:4 Comentario: Rashi, Metzudat David & Tze'enah Ure'enah

From the wilderness and this Lebanon. The wilderness refers to the wilderness of Kodeish, the wilderness of Tzin, which was adjacient to Edom which was to the south east, the direction from which they entered the land, as it is said: And behold we are in Kodeish.¹¹Bamidbar 20:16. How do we know that it was southeast? It is said: ‘Your southern flank will be from the Tzin wilderness along Edom.’¹²Bamidbar 34:3.

This is in the wind from the way the sun has arisen.

To the great river, the Euphrates river. This refers to its width from south to north.

This includes all the land of the Chitim.

To the Great Sea [westward]. This refers to its length from east to west.