"To blow a shofar, you've got to form an embouchure, like you're blowing into a trumpet, and you've got to blow really, really hard. The idea is to call forth the faithful, to remind them of the mighty deeds of God. It was the shofar that was heard when the Ten Commandments were given, the shofar that brought down the city of Jericho, the shofar that for centuries has marked the beginning of a new year."
From A Year of Biblical Womanhood by Rachel Held Evans