1 Corinthians 14:8

For indeed, if the trumpet produces an indistinct sound, who will prepare for battle?

Numbers 10:9

If you go [to] war in your land against the enemy who attacks you, you will signal with a loud noise on the trumpets. You will be remembered {before} Yahweh your God, and you will be rescued from your enemies.

Jeremiah 4:19

My bowels, my bowels! I writhe! The walls of my heart! My heart is restless within me, I cannot keep silent, for I hear [in] my inner self the sound of a horn, [the] alarm of war.

Joshua 6:4-20

And seven priests will bear seven trumpets of rams' horns before the ark. On the seventh day you will march around the city seven times, and the priests will blow on the trumpets.

Judges 7:16-18

He divided the three hundred men [into] three companies, and he put trumpets and empty jars in everyone's hand, with torches inside the jars.

Nehemiah 4:18-21

Each of the builders had his sword tied to his side while building. And the man who sounded the trumpet was beside me.

Job 39:24-25

With roar and rage {it races over the ground}, and it cannot stand still at [the] sound of [the] horn.

Isaiah 27:13

And this shall happen: on that day, a great trumpet will be blown, and those who were lost in the land of Assyria will come, and those who were scattered in the land of Egypt, and they will bow down to Yahweh on the {holy mountain} at Jerusalem.

Ezekiel 33:3-6

and he sees the sword coming against the land, and he blows on the horn and he warns the people,

Joel 2:1

Blow [the] trumpet in Zion, and sound the alarm on {my holy mountain}! Let all the inhabitants of the land tremble, for the day of Yahweh [is] coming --[it is] indeed near.

Amos 3:6

Or is a horn blown in a city and people are not afraid? Or does a disaster occur in the city and Yahweh has not done [it]?

Ephesians 6:11-18

Put on the full armor of God, so that you may be able to stand against the stratagems 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
If you go [to] war in your land against the enemy who attacks you, you will signal with a loud noise on the trumpets. You will be remembered {before} Yahweh your God, and you will be rescued from your enemies.
Joshua 6:4
And seven priests will bear seven trumpets of rams' horns before the ark. On the seventh day you will march around the city seven times, and the priests will blow on the trumpets.
Judges 7:16
He divided the three hundred men [into] three companies, and he put trumpets and empty jars in everyone's hand, with torches inside the jars.
Nehemiah 4:18
Each of the builders had his sword tied to his side while building. And the man who sounded the trumpet was beside me.
Job 39:24
With roar and rage {it races over the ground}, and it cannot stand still at [the] sound of [the] horn.
Isaiah 27:13
And this shall happen: on that day, a great trumpet will be blown, and those who were lost in the land of Assyria will come, and those who were scattered in the land of Egypt, and they will bow down to Yahweh on the {holy mountain} at Jerusalem.
Amos 3:6
Or is a horn blown in a city and people are not afraid? Or does a disaster occur in the city and Yahweh has not done [it]?
Ephesians 6:11
Put on the full armor of God, so that you may be able to stand against the stratagems of the devil,