Judges 7:8

And they took victuals with them for the folk, and their trumpets. And he sent all the rest of Israel, every man unto his tent, and kept the three hundred with him. And the host of Midian was beneath him in a valley.

Leviticus 23:24

"Speak unto the children of Israel, and say, 'The first day of the seventh month shall be a rest of remembrance unto you, to blow horns in a holy feast it shall be,

Leviticus 25:9

And then thou shalt make a horn blow: even in the tenth day of the seventh month, which is the day of atonement. And then shall ye make the horn blow, even throughout all your land.

Numbers 10:9

"And when ye shall go to war in your land against your enemies that vex you, ye shall trump with the trumpets and ye shall be remembered before the LORD your God and saved from your enemies.

Joshua 6:4

And seven priests shall bear seven trumpets of rams' horns before the ark. And the seventh day, ye shall compass the city seven times and the priests shall blow with their trumpets.

Joshua 6:20

And the people cried, and blew with horns: for when the people heard the sound of the horns, they shouted a great shout. And the walls fell down, and the people went up into the city, every man straight before him, and took the city.

Judges 3:27

And when he was come, he blew a trumpet in mount Ephraim. And the children of Israel went down with him off the hill and he before them.

Judges 6:33

When all the Midianites, the Amalekites and they of the east were gathered together and had gone and pitched in the valley of Jezreel,

Isaiah 27:13

Then shall the great trumpet be blown, so that those which have been destroyed in the Assyrian's land, and those that be scattered abroad in Egypt, shall come and worship the LORD at Jerusalem, upon the holy mount.

1 Corinthians 15:52

and that in a moment, and in the twinkling of an eye, at the sound of the last trumpet. For the trumpet shall blow, and the dead shall rise incorruptible: And we shall be changed.

Treasury of Scripture Knowledge

Summary

So the people took victuals in their hand, and their trumpets: and he sent all the rest of Israel every man unto his tent, and retained those three hundred men: and the host of Midian was beneath him in the valley.

In the valley

Bible References

Trumpets

Judges 3:27
And when he was come, he blew a trumpet in mount Ephraim. And the children of Israel went down with him off the hill and he before them.
Leviticus 23:24
"Speak unto the children of Israel, and say, 'The first day of the seventh month shall be a rest of remembrance unto you, to blow horns in a holy feast it shall be,
Leviticus 25:9
And then thou shalt make a horn blow: even in the tenth day of the seventh month, which is the day of atonement. And then shall ye make the horn blow, even throughout all your land.
Numbers 10:9
"And when ye shall go to war in your land against your enemies that vex you, ye shall trump with the trumpets and ye shall be remembered before the LORD your God and saved from your enemies.
Joshua 6:4
And seven priests shall bear seven trumpets of rams' horns before the ark. And the seventh day, ye shall compass the city seven times and the priests shall blow with their trumpets.
Isaiah 27:13
Then shall the great trumpet be blown, so that those which have been destroyed in the Assyrian's land, and those that be scattered abroad in Egypt, shall come and worship the LORD at Jerusalem, upon the holy mount.
1 Corinthians 15:52
and that in a moment, and in the twinkling of an eye, at the sound of the last trumpet. For the trumpet shall blow, and the dead shall rise incorruptible: And we shall be changed.

In the valley

Judges 6:33
When all the Midianites, the Amalekites and they of the east were gathered together and had gone and pitched in the valley of Jezreel,