I was in the Spirit on the Lord's day, and heard behind me a great voice, as of a trumpet,
After this I looked, and, behold, a door was opened in heaven: and the first voice which I heard was as it were of a trumpet talking with me; which said, Come up here, and I will show you things which must be hereafter.
Therefore when you give your alms, do not sound a trumpet before you, as the hypocrites do in the synagogues and in the streets, that they may have glory of men. Verily I say unto you, They have their reward.
There shall not a hand touch it, but he shall surely be stoned, or shot through; whether it be beast or man, it shall not live: when the trumpet sounds long, they shall come up to the mount.
And it came to pass on the third day in the morning, that there were thunders and lightnings, and a thick cloud upon the mount, and the voice of the trumpet exceedingly loud; so that all the people that were in the camp trembled.
And when the voice of the trumpet sounded long, and grew 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 moved, and stood far off.
And the sound of a trumpet, and the voice of words; which voice they that heard entreated that the word should not be spoken to them any more:
All you inhabitants of the world, and dwellers on the earth, see, when he lifts up a banner on the mountains; and when he blows a trumpet, hear.
Also I set watchmen over you, saying, Hearken to the sound of the trumpet. But they said, We will not hearken.
In whatever place therefore you hear the sound of the trumpet, come you there unto us: our God shall fight for us.
Declare you in Judah, and publish in Jerusalem; and say, Blow you the trumpet in the land: cry, Gather together, and say, Assemble yourselves, and let us go into the fortified cities.
Blow the horn in Gibeah, and the trumpet in Ramah: cry aloud at Bethaven, beware, O Benjamin.
And Moses sent them to the war, a thousand of every tribe, them and Phinehas the son of Eleazar the priest, to the war, with the holy instruments, and the trumpets to blow in his hand.
If when he sees the sword come upon the land, he blows the trumpet, and warns the people;
But if the watchman sees the sword come, and blows not the trumpet, and the people are not warned; if the sword comes, and takes any person from among them, he is taken away in his iniquity; but his blood will I require at the watchman's hand.
Set the trumpet to your mouth. He shall come as an eagle over the house of the LORD, because they have transgressed my covenant, and trespassed against my law.
Shall a trumpet be blown in the city, and the people not be afraid? shall there be calamity in a city, and the LORD has not done it?
Cry aloud, spare not, lift up your voice like a trumpet, and show my people their transgression, and the house of Jacob their sins.
And it came to pass, when he had come, that he blew a trumpet in the mountain of Ephraim, and the children of Israel went down with him from the mount, and he was before them.
But the spirit of the LORD came upon Gideon, and he blew a trumpet; and Abiezer was gathered after him.
1 Samuel 13:3
And Jonathan struck the garrison of the Philistines that was in 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
And there happened to be there a man of Belial, whose name was Sheba, the son of Bichri, a Benjamite: and he blew a trumpet, and said, We have no part in David, neither have we inheritance in the son of Jesse: every man to his tents, O Israel.