Nehemiah 4:18

and the builders, every man had his sword girded by his side, and so built. And he who sounded the trumpet was by me.

Numbers 10:9

And when ye go to war in your land against the adversary that oppresses you, then ye shall sound an alarm with the trumpets. And ye shall be remembered before LORD your God, and ye shall be saved from your enemies.

2 Chronicles 13:12-17

And, behold, God is with us at our head, and his priests with the trumpets of alarm to sound an alarm against you. O sons of Israel, fight ye not against LORD, the God of your fathers. For ye 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 when ye go to war in your land against the adversary that oppresses you, then ye shall sound an alarm with the trumpets. And ye shall be remembered before LORD your God, and ye shall be saved from your enemies.
2 Chronicles 13:12
And, behold, God is with us at our head, and his priests with the trumpets of alarm to sound an alarm against you. O sons of Israel, fight ye not against LORD, the God of your fathers. For ye shall not prosper.

General references

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