The tragic fall and subsequent exile of the Kingdom of Israel stand as the unavoidable result of sins that had taken deep root within the nation. The people had reached a point of no return, where no remedy remained except their complete removal from the land. This defining event highlights a sharp contrast between the destiny of the Kingdom of Israel and that of the neighboring Kingdom of Judah. The Israelites embraced wickedness to such an extreme degree that their own actions directly caused God to remove them from His presence [מצודת דוד].
The primary approach among commentators is that this exile served a secondary, protective purpose for the Kingdom of Judah. While the people of Israel sinned willingly and by their own choice, the people of Judah sinned primarily because they were negatively influenced by Israel or forced into it by their kings. Therefore, God sent Israel away to shield Judah, whose measure of sin was not yet full, preventing them from continuing to learn from Israel's destructive ways [מלבי״ם, מצודת דוד].
The departure of the nation is understood not merely as a passive expulsion by foreign conquerors, but as a profound state of being where Israel actively went into exile [רש״י, מנחת שי]. Although this event did not completely empty the land of every inhabitant, leaving a few scattered remnants behind, it definitively marked the end of Israel as a unified national entity [ביאור שטיינזלץ].
The finality of this punishment carried permanent consequences. Unlike the people of Judah, who eventually returned to their land during the Second Temple era once the negative influences that led them to sin were gone, the Israelites remained in their Assyrian exile and never came back [מצודת דוד].