The Shofar is mentioned seventy two times in the bible in various contexts and functions.  "And in the seventh month, on the first day of the month, you shall have a holy convocation. You shall do no customary work, For you it is a day of blowing the trumpets [shofarim]."  Numbers 29:1 ; Rosh Hashanah is called “The Day of the Shofar Blast. The shofar-blower recites two blessings, and then blows a set sequence of three kinds of blasts: 1) Tekiah—an uninterrupted blast lasting for several seconds. 2) Shevarim—three medium-length blasts. 3) Teruah—a minimum of nine very short blasts.
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