Haftorah VaEschanan: Nachamu Nachamu - Waiting For The Second Nechama
Why does Yeshaya say twice Nachamu Nachamu? The Mabit in his peirush on Perek Shira answers that typically nechama does not restore the situation to its previous state. The damage is still there, but the consolation helps ease the pain. When someone dies we are Menachem the ones left behind. but the deceased does not come back to life.
Hashem tells Am Yisrael that He will bestow upon us two nechamos. The first one: when we are in galus he will go into galus with us as a consolation. This is a typical nechama. The second nechama is beyond a regular nechama. It is promise from Hashem that eventually He will bring us back to Eretz Yisrael and rebuild the Bais HaMikdash. That is why it says in future tense, "Yoimar Elokeichem," because the second nechama will take place only in the future.