Before the Israelites entered their destined inheritance, the prophets issued a stark warning about the spiritual state of the territory. They made it clear that the land had been completely corrupted and polluted by the people who lived there before them.
The primary approach among commentators is that the region was trapped in a state of deep impurity, filth, and disgust. This severe contamination did not occur naturally. Rather, it was directly caused by the actions of the Canaanite nations, who defiled their environment through idol worship and forbidden sexual relations [רלב״ג, מלבי״ם]. Because of this profound corruption, the land was considered an abominable thing that required strict distance and separation [אבן עזרא, מצודת דוד].
The sheer scale of this contamination was overwhelming. The previous nations had completely filled the territory with their impurity, stretching entirely from one end of the land to the other [מצודת דוד, ביאור שטיינזלץ]. This absolute saturation meant that the pollution reached from the threshold of one city gate all the way to the opposite gate [רב סעדיה גאון].
Despite this grim reality of defilement, there remains a powerful message of hope. Just as a woman who experiences ritual impurity eventually immerses and returns to a state of purity, the territory and the people of Israel possess the same capacity for renewal. When the people turn back to God in sincere repentance, they can cleanse both themselves and the land from this deep impurity [רב סעדיה גאון].