English: “That you see” — In any place that you see you may not offer, but you may offer in any place that a prophet tells you to, in the manner that Eliyahu offered on Mount Carmel.
On the daf / in context: The general prohibition admits a temporary prophetic exception when required for the needs of the hour, as in Eliyahu’s contest with the prophets of Baal.
Type of Learning
Derash on the verse (Sifrei) — the prophetic exception to the ban on outside offerings.
What Is Learned
A prophet may authorize a temporary offering outside the chosen place when the need of the hour requires it, as Eliyahu did on Mount Carmel.