Nehemiah 4:18

And the builders are each with his sword, girded on his loins, and building, and he who is blowing with a trumpet is beside me.

Numbers 10:9

'And when ye go into battle in your land against the adversary who is distressing you, then ye have shouted with the trumpets, and ye have been remembered before Jehovah your God, and ye have been saved from your enemies.

2 Chronicles 13:12-17

And lo, with us -- at our head -- is God, and His priests and trumpets of shouting to shout against you; O sons of Israel, do not fight with Jehovah, God of your fathers, for ye do 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 into battle in your land against the adversary who is distressing you, then ye have shouted with the trumpets, and ye have been remembered before Jehovah your God, and ye have been saved from your enemies.
2 Chronicles 13:12
And lo, with us -- at our head -- is God, and His priests and trumpets of shouting to shout against you; O sons of Israel, do not fight with Jehovah, God of your fathers, for ye do not prosper.'

General references

1 Corinthians 12:21
and an eye is not able to 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 if also an uncertain sound a trumpet may give, who shall prepare himself for battle?