Numbers 10:7

And in the assembly being gathered together, ye shall sound, and shall not sound loud.

Joel 2:1

Clang ye the trumpet in Zion, shout in my holy mountain: all the inhabitants of the land shall be moved, for the day of Jehovah is coming, for it is near.

Numbers 10:3-4

And they sounded with them, and they assembled to thee all the assembly at the door of the tent of appointment

Treasury of Scripture Knowledge

Summary

But when the congregation is to be gathered together, ye shall blow, but ye shall not sound an alarm.

Ye shall blow

Sound

Bible References

Ye shall blow

Numbers 10:3
And they sounded with them, and they assembled to thee all the assembly at the door of the tent of appointment

Sound

Joel 2:1
Clang ye the trumpet in Zion, shout in my holy mountain: all the inhabitants of the land shall be moved, for the day of Jehovah is coming, for it is near.