Numbers 10:7

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

Joel 2:1

Blow ye the trumpet in Zion, and sound an alarm in my holy mountain; let all the inhabitants of the land tremble: for the day of Jehovah cometh, for it is nigh at hand;

Numbers 10:3-4

And when they shall blow them, all the congregation shall gather themselves unto thee at the door of the tent of meeting.

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 when they shall blow them, all the congregation shall gather themselves unto thee at the door of the tent of meeting.

Sound

Joel 2:1
Blow ye the trumpet in Zion, and sound an alarm in my holy mountain; let all the inhabitants of the land tremble: for the day of Jehovah cometh, for it is nigh at hand;

American Standard Version Public Domain