I was in the Spirit in the day of the Lord and heard behind me a great voice as of a trumpet,
After these things I looked, and, behold, an open door in heaven, and the first voice which I heard, was like a trumpet that spoke with me, saying, Come up here, and I will show thee the things that need to be done after these.
Therefore, when thou doest thine alms, do not sound a trumpet before thee, as the hypocrites do in the synagogues and in the streets that they may have glory of men. Verily I say unto you, They already have their reward.
Not a hand shall touch it, but that he shall surely be stoned or shot through; whether it be beast or man, it shall not live. When the jubilee sounds long, they shall come up to the mount.
And it came to pass on the third day when the morning came, that there were thunders and lightnings and a thick cloud upon the mount and the voice of the shofar exceeding loud, so that all the people that were in the camp trembled.
And the voice of the shofar sounded long and waxed louder and louder; Moses spoke, and God answered him by a voice.
And all the people saw the thunderings and the lightnings and the noise of the trumpet and the mountain smoking; and when the people saw it, they trembled and stood afar off.
and the sound of a trumpet and the voice of words, which voice those that heard intreated that the word should not be spoken to them any more;
All ye inhabitants of the world and neighbours of the land, when he lifts up a banner as an example on the mountains, ye shall see it; and when he blows the shofar, ye shall hear it.
Also I set watchmen over you, saying, Hearken to the sound of the shofar. But they said, We will not hearken.
In whatever place that you hear the voice of the shofar, join us there; our God shall fight for us.
Declare ye in Judah and publish in Jerusalem and say, Blow ye the shofar in the land; cry, gather together, and say, Assemble yourselves, and let us go into the defenced cities.
Blow ye the shofar in Gibeah and the trumpet in Ramah; sound the drum in Bethaven; after thee, O Benjamin.
And Moses sent them to the war; he sent a thousand of every tribe; and Phinehas, the son of Eleazar the priest, went to the war with the holy instruments, with the trumpets to blow in his hand.
and he should see the sword coming upon the land, if he should blow the shofar, and warn the people,
But if the watchman should see the sword coming and not blow the shofar and the people not be warned, if the sword comes and takes any person from among them, he is taken away because of his iniquity; but his blood I will require at the watchman's hand.
Set the shofar to thy mouth. He shall come as an eagle against the house of the LORD because they have transgressed my covenant and rebelled against my law.
Shall the shofar be blown in the city and the people not be afraid? Shall there be any evil in the city which the LORD has not done?
Cry aloud, do not hold back; lift up thy voice like a shofar and preach to my people their rebellion and to the house of Jacob their sin.
And as he entered in, he blew the shofar in the mountain of Ephraim, and the sons of Israel went down with him from the mount, and he before them.
And the Spirit of the LORD clothed himself in Gideon, who when he had blown the shofar, Abiezer joined with him.
1 Samuel 13:3
And Jonathan smote the garrison of the Philistines that was in Geba, and the Philistines heard of it. And Saul caused the shofar to be blown throughout all the land, saying, Let the Hebrews hear.
2 Samuel 20:1
And a man of Belial happened to be there, whose name was Sheba, the son of Bichri, a man of Jemini, and he blew the shofar, saying, We have no part in David, neither have we inheritance in the son of Jesse. Every man to his tents, O Israel.