English: “That Hashem your God is giving you” — this excludes the Diaspora.
On the daf / in context: The law of the ir ha-nidachas applies only within the Land that Hashem gives for dwelling; cities outside Eretz Yisrael are not subject to it.
Type of Learning
Derash on the verse (Sifrei) — the ir ha-nidachas law is limited to Eretz Yisrael.
What Is Learned
The law of the condemned city applies only in Eretz Yisrael, not in chutz la-aretz.