Numbers 10:7

Amplified Bible

When the assembly is to be gathered, you shall blow [the trumpets in short, sharp tones], but without sounding an alarm.

Cross References

Joel 2:1

Blow the trumpet in Zion [warning of impending judgment], Sound an alarm on My holy mountain [Zion]! Let all the inhabitants of the land tremble and shudder in fear, For the [judgment] day of the Lord is coming; It is close at hand, [Ezek 7:2-4; Amos 5:16-20]

Numbers 10:8

The sons of Aaron, the priests, shall blow the trumpets; and the trumpets shall be for you a perpetual statute throughout your generations.