Numbers 10:3

Amplified Bible

When both are blown, all the congregation [that is, all adult males] shall gather before you at the doorway of the Tent of Meeting (tabernacle).

Cross References

Jeremiah 4:5

¶Declare in Judah and proclaim in Jerusalem, and say, “Blow the trumpet in the land; Cry aloud and say, ‘Assemble yourselves, and let us go Into the fortified cities.’

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]