Nehemiah 4:18

For the builders, everyone had his sword girded by his side, and so built. And he that sounded the trumpet was by me.

Numbers 10:9

And if you go to war in your land against the enemy that oppresses you, then you shall blow an alarm with the trumpets; and you shall be remembered before the LORD your God, and you shall be saved from your enemies.

2 Chronicles 13:12-17

And, behold, God himself is with us as our captain, and his priests with sounding trumpets to sound the alarm against you. O children of Israel, fight not against the LORD God of your fathers; for you shall not prosper.

Treasury of Scripture Knowledge

Summary

For the builders, every one had his sword girded by his side, and so builded. And he that sounded the trumpet was by me.

Bible References

He that sounded

Numbers 10:9
And if you go to war in your land against the enemy that oppresses you, then you shall blow an alarm with the trumpets; and you shall be remembered before the LORD your God, and you shall be saved from your enemies.
2 Chronicles 13:12
And, behold, God himself is with us as our captain, and his priests with sounding trumpets to sound the alarm against you. O children of Israel, fight not against the LORD God of your fathers; for you shall not prosper.

General references

1 Corinthians 12:21
And the eye cannot say unto the hand, I have no need of you: nor again the head to the feet, I have no need of you.
1 Corinthians 14:8
For if the trumpet gives an uncertain sound, who shall prepare himself for the battle?