I was in the Spirit [rapt in His power] on the Lord's Day, and I heard behind me a great voice like the calling of a war trumpet,
After this I looked, and behold, a door standing open in heaven! And the first voice which I had heard addressing me like [the calling of] a war trumpet said, Come up here, and I will show you what must take place in the future.
Thus, whenever you give to the poor, do not blow a trumpet before you, as the hypocrites in the synagogues and in the streets like to do, that they may be recognized and honored and praised by men. Truly I tell you, they have their reward in full already.
No hand shall touch it [or the offender], but he shall surely be stoned or shot [with arrows]; whether beast or man, he shall not live. When the trumpet sounds a long blast, they shall come up to the mountain.
The third morning there were thunders and lightnings, and a thick cloud upon the mountain, and a very loud trumpet blast, so that all the people in the camp trembled.
As the trumpet blast grew louder and louder, Moses spoke and God answered him with a voice.
Now all the people perceived the thunderings and the lightnings and the noise of the trumpet and the smoking mountain, and as [they] looked they trembled with fear and fell back and stood afar off.
And to the blast of a trumpet and a voice whose words make the listeners beg that nothing more be said to them.
All you inhabitants of the world, you who dwell on the earth, when a signal is raised on the mountains -- "look! When a trumpet is blown -- "hear!
Also I set watchmen over you, saying, Hear and obey the sound of the trumpet! But they said, We will not listen or obey.
In whatever place you hear the sound of the trumpet, rally to us there. Our God will fight for us.
Declare in Judah and publish in Jerusalem and say: Blow the trumpet in the land; cry aloud and say: Assemble yourselves, and let us go into the fortified cities.
Blow the horn in Gibeah and the trumpet in Ramah [both lofty hills on Benjamin's northern border]. Sound the alarm at Beth-aven: [the enemy is] behind you and after you, O Benjamin [be on your guard]!
And Moses sent them to the war, 1,000 from each tribe, together with Phinehas son of Eleazar, the priest, with the [sacred] vessels of the sanctuary and the trumpets to blow the alarm in his hand.
If when he sees the sword coming upon the land, he blows the trumpet and warns the people,
But if the watchman sees the sword coming and does not blow the trumpet and the people are not warned, and the sword comes and takes any one of them, he is taken away in and for his perversity and iniquity, but his blood will I require at the watchman's hand.
Set the trumpet to your lips! [The enemy] comes as a [great] vulture against the house of the Lord, because they have broken My covenant and transgressed against My law.
Shall a trumpet be blown in the city and the people not be alarmed and afraid? Shall misfortune or evil occur [as punishment] and the Lord has not caused it?
Cry aloud, spare not. Lift up your voice like a trumpet and declare to My people their transgression and to the house of Jacob their sins!
When he arrived, he blew a trumpet in the hill country of Ephraim, and the Israelites went down from the hill country, with him at their head.
But the Spirit of the Lord clothed Gideon with Himself and took possession of him, and he blew a trumpet, and [the clan of] Abiezer was gathered to him.
1 Samuel 13:3
Jonathan smote the Philistine garrison at Geba, and the Philistines heard of it. And Saul blew the trumpet throughout all the land, saying, Let the Hebrews hear!
2 Samuel 20:1
There happened to be there a base and contemptible fellow named Sheba son of Bichri, a Benjamite. He blew a trumpet and said, We have no portion in David and no inheritance in the son of Jesse! Every man to his tents, O Israel!