1 Corinthians 14:8

For if the bugle produces an indistinct sound, who will prepare himself for battle?

Numbers 10:9

When you go to war in your land against the adversary who attacks you, then you shall sound an alarm with the trumpets, that you may be remembered before the Lord your God, and be saved from your enemies.

Jeremiah 4:19

My soul, my soul! I am in anguish! Oh, my heart!
My heart is pounding in me;
I cannot be silent,
Because you have heard, O my soul,
The sound of the trumpet,
The alarm of war.

Joshua 6:4-20

Also seven priests shall carry seven trumpets of rams’ horns before the ark; then on the seventh day you shall march around the city seven times, and the priests shall blow the trumpets.

Judges 7:16-18

He divided the 300 men into three companies, and he put trumpets and empty pitchers into the hands of all of them, with torches inside the pitchers.

Nehemiah 4:18-21

As for the builders, each wore his sword girded at his side as he built, while the trumpeter stood near me.

Job 39:24-25

“With shaking and rage he races over the ground,
And he does not stand still at the voice of the trumpet.

Isaiah 27:13

It will come about also in that day that a great trumpet will be blown, and those who were perishing in the land of Assyria and who were scattered in the land of Egypt will come and worship the Lord in the holy mountain at Jerusalem.

Ezekiel 33:3-6

and he sees the sword coming upon the land and blows on the trumpet and warns the people,

Joel 2:1

Blow a trumpet in Zion,
And sound an alarm on My holy mountain!
Let all the inhabitants of the land tremble,
For the day of the Lord is coming;
Surely it is near,

Amos 3:6

If a trumpet is blown in a city will not the people tremble?
If a calamity occurs in a city has not the Lord done it?

Ephesians 6:11-18

Put on the full armor of God, so that you will be able to stand firm against the schemes of the devil.

Treasury of Scripture Knowledge

Summary

For if the trumpet give an uncertain sound, who shall prepare himself to the battle?

Bible References

General references

Numbers 10:9
When you go to war in your land against the adversary who attacks you, then you shall sound an alarm with the trumpets, that you may be remembered before the Lord your God, and be saved from your enemies.
Joshua 6:4
Also seven priests shall carry seven trumpets of rams’ horns before the ark; then on the seventh day you shall march around the city seven times, and the priests shall blow the trumpets.
Judges 7:16
He divided the 300 men into three companies, and he put trumpets and empty pitchers into the hands of all of them, with torches inside the pitchers.
Nehemiah 4:18
As for the builders, each wore his sword girded at his side as he built, while the trumpeter stood near me.
Job 39:24
“With shaking and rage he races over the ground,
And he does not stand still at the voice of the trumpet.
Isaiah 27:13
It will come about also in that day that a great trumpet will be blown, and those who were perishing in the land of Assyria and who were scattered in the land of Egypt will come and worship the Lord in the holy mountain at Jerusalem.
Amos 3:6
If a trumpet is blown in a city will not the people tremble?
If a calamity occurs in a city has not the Lord done it?
Ephesians 6:11
Put on the full armor of God, so that you will be able to stand firm against the schemes of the devil.