The judgment handed down to the false prophets is a severe, threefold punishment designed to completely sever them from the spiritual, eternal, and physical heritage of the people. The punishment begins with a heavy strike from God, as His hand comes down hard upon them [מצודת דוד, ביאור שטיינזלץ, רד״ק].
The first stage of this penalty removes these prophets from the inner circle and assembly of the nation [מצודת ציון, ביאור שטיינזלץ]. The primary approach among commentators is that they will be cast out from the community entirely and no longer considered part of the people. However, some explain this on a deeper level as a loss of their spiritual inheritance. They will have no share in the Torah, the nation's holiness, or the hidden good reserved for Israel [מלבי״ם, רד״ק]. An ancient Talmudic tradition offers a different angle, suggesting they will be stripped of the internal authority to establish the calendar [חומת אנך].
The second stage dictates that they will be erased from the official record of the nation. Most commentators agree this relates to eternal life, meaning the false prophets will not be inscribed alongside the righteous in the Book of Life for the World to Come. Another view frames this as a historical punishment. They will fade from the collective memory of the nation, their words will never be recorded in books, and they will not be counted among the leaders [ביאור שטיינזלץ]. Following the Talmudic tradition, this step represents the loss of the right to official ordination and the authority to teach [חומת אנך].
The final punishment denies them the right to enter the Land of Israel. When the exiles eventually return from Babylon during the time of redemption, these false prophets will be barred from joining them [רד״ק, מצודת דוד, ביאור שטיינזלץ].
This precise system of punishment perfectly mirrors the three great gifts God bestowed upon Israel: the Torah, the World to Come, and the Land of Israel. By losing all three, the false prophets forfeit their entire connection to both physical, national existence and spiritual life [מלבי״ם]. Through this absolute and unyielding penalty, it will become clear to everyone that God remains faithful to deliver exact and just consequences for human actions [מצודת דוד].