Jewish History With Rabbi Dovid Katz

Why doesa shofar have to be davka from a שְׁפוֹפֶרֶת, from a horn whose inside layer can be removed?

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Sinopsis

The symbolism of וּמַלְתֶּם אֵת עָרְלַת לְבַבְכֶם , removing the layer of "foreskin" on the "heart." A difficult task indeed.https://thechesedfund.com/rabbikatz/support-rabbi-katzz-podcast