Judges 7:8

Gideon sent the Israelites home, except the three hundred. They kept all the supplies and trumpets. The Midianite camp was below them in the valley.

Leviticus 23:24

Observe a special day of rest on the first day of the seventh month. Gather together for worship when the trumpets sound.

Leviticus 25:9

Then, on the tenth day of the seventh month, the Day of Atonement, send someone to blow a trumpet throughout the whole land.

Numbers 10:9

When there is war in your land and you defend yourselves against an enemy attack, sound the signal for battle on these trumpets. I, Jehovah your God, will help you and save you from your enemies.

Joshua 6:4

Seven priests will carry before you seven trumpets of rams' horns along with the Ark. On the seventh day march around the city seven times. The priests shall blow the trumpets.

Joshua 6:20

So the people shouted when the priests blew the trumpets. When the people heard the sound of the trumpet, and the people shouted with a great shout, the wall fell down flat. The people went into the city, every man straight ahead. They captured the city.

Judges 3:27

When he arrived there in the hill country of Ephraim, he blew a trumpet to call the people of Israel to battle. Then he led them down from the hills.

Judges 6:33

The Midianites, Amalekites, and the desert tribes assembled, crossed the Jordan River, and camped in Jezreel Valley.

Isaiah 27:13

A great trumpet will sound. Those who were perishing in Assyria and those who were exiled in Egypt will come and worship Jehovah on the holy mountain in Jerusalem.

1 Corinthians 15:52

In a moment, in the twinkling of an eye, at the last reverberation of the trumpet: for the trumpet shall sound, and the dead shall be raised 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
When he arrived there in the hill country of Ephraim, he blew a trumpet to call the people of Israel to battle. Then he led them down from the hills.
Leviticus 23:24
Observe a special day of rest on the first day of the seventh month. Gather together for worship when the trumpets sound.
Leviticus 25:9
Then, on the tenth day of the seventh month, the Day of Atonement, send someone to blow a trumpet throughout the whole land.
Numbers 10:9
When there is war in your land and you defend yourselves against an enemy attack, sound the signal for battle on these trumpets. I, Jehovah your God, will help you and save you from your enemies.
Joshua 6:4
Seven priests will carry before you seven trumpets of rams' horns along with the Ark. On the seventh day march around the city seven times. The priests shall blow the trumpets.
Isaiah 27:13
A great trumpet will sound. Those who were perishing in Assyria and those who were exiled in Egypt will come and worship Jehovah on the holy mountain in Jerusalem.
1 Corinthians 15:52
In a moment, in the twinkling of an eye, at the last reverberation of the trumpet: for the trumpet shall sound, and the dead shall be raised incorruptible, and we shall be changed.

In the valley

Judges 6:33
The Midianites, Amalekites, and the desert tribes assembled, crossed the Jordan River, and camped in Jezreel Valley.