The Shofar has a long history, first mentioned in the Torah in Exo_19:16 And it came to be, on the third day in the morning, that there were thunders and lightnings, and a thick cloud on the mountain. And the sound of the ram’s horn was very loud, and all the people who were in the camp trembled. Exo_20:18 And all the people saw the thunders, the lightning flashes, the sound of the ram’s horn, and the mountain smoking. And the people saw it, and they trembled and stood at a distance. The sounding of the horn was first instructed by to be used by Yisra’ĕl in Lev-23:24 “Speak to the children of Yisra’ĕl, saying, ‘In the seventh month, on the first day of the month, you have a rest, a remembrance of blowing of trumpets, a set-apart gathering.
Through out the Bible the Shofar is mentioned and instructed for use in a variety of events, from calling the congregation, at the beginning of battle, on the Sabbath, during a New Moon, in celebration on the High Holy Days, at Weddings and for Praise and Worship.
Num_10:2 “Make two silver trumpets for yourself, make them of beaten work. And you shall use them for calling the congregation and for breaking camp. Num_10:8 “And the sons of Aharon, the priests, blow with the trumpets. And it shall be to you for a law forever throughout your generations. Num_10:9 “And when you go into battle in your land against the enemy that distresses you, then you shall shout with the trumpets, and you shall be remembered before יהוה your Elohim, and you shall be saved from your enemies. Num_10:10 “And in the day of your gladness, and in your appointed times, and at the beginning of your months, you shall blow the trumpets over your burnt offerings and over your peace offerings. And they shall be a remembrance for you before your Elohim. Ch_13:8 And Dawiḏ and all Yisra’ĕl were playing before Elohim with all their might, and with songs, and with lyres, and with harps, and with tambourines, and with cymbals, and with trumpets. 1Ch_15:24 and Sheḇanyahu, and Yoshaphat, and Nethanĕ’l, and Amasai, and Zeḵaryahu, and Benayahu, and Eliʽezer, the priests, were to blow the trumpets before the ark of Elohim. And Oḇĕḏ-Eḏom and Yeḥiyah, were doorkeepers for the ark. 1Ch_16:42 and with them Hĕman and Yeḏuthun, to sound aloud with trumpets and cymbals and instruments for the songs of Elohim, and the sons of Yeḏuthun for the gate. 2Ch_5:12 and the Lĕwite singers, all those of Asaph and Hĕman and Yeḏuthun, with their sons and their brothers, stood at the east end of the altar, dressed in white linen, having cymbals and harps and lyres, and with them one hundred and twenty priests sounding with trumpets. 2Ch_5:13 Then it came to be, as the trumpeters and singers were as one, to make one sound to be heard in praising and thanking יהוה, and when they lifted up their voice with the trumpets, and with cymbals, and with instruments of song, and giving praise to יהוה, “For He is good, for His kindness is everlasting,” that the house, the House of יהוה, was filled with a cloud, 2Ch_7:6 And the priests were standing over their duties, and the Lĕwites with instruments of the song to יהוה, which Sovereign Dawiḏ had made to give thanks to יהוה, saying, “For His kindness is everlasting,” whenever Dawiḏ praised by their hand. And the priests were blowing trumpets before them, and all Yisra’ĕl were standing. 2Ch_13:14 And Yehuḏah turned and saw the battle was both in front and behind them. Then they cried out to יהוה, and the priests sounded the trumpets. 2Ch_15:14 And they swore to יהוה with a loud voice, with shouting and with trumpets and with rams’ horns. 2Ch_23:13 and looked and saw the sovereign standing by his column at the entrance. And the chiefs and the trumpeters were beside the sovereign, and all the people of the land rejoicing and blowing trumpets, also the singers with instruments of song, and those who led in praise. Ezr_3:10 And when the builders laid the foundation of the Hĕḵal of יהוה, they appointed the priests in their robes, with trumpets, and the Lĕwites, the sons of Asaph, with cymbals, to praise יהוה, after the order of Dawiḏ sovereign of Yisra’ĕl. Psa_98:6 With trumpets and the sound of a horn; Raise a shout before יהוה, the Sovereign. Rev_8:2 And I saw the seven messengers who stand before Elohim, and to them were given seven trumpets. Rev_8:6 And the seven messengers who held the seven trumpets prepared themselves to sound.