Numbers 10:3

and they have blown with them, and all the company have met together unto thee, unto the opening of the tent of meeting.

Jeremiah 4:5

Declare in Judah, and in Jerusalem sound, And say ye, 'Blow a trumpet in the land,' Call ye fully, and say ye: 'Be gathered, and we go in to the fenced city.'

Joel 2:15-16

Blow ye a trumpet in Zion, Sanctify a fast -- proclaim a restraint.

Treasury of Scripture Knowledge

Summary

And when they shall blow with them, all the assembly shall assemble themselves to thee at the door of the tabernacle of the congregation.

General references

Bible References

General references

Jeremiah 4:5
Declare in Judah, and in Jerusalem sound, And say ye, 'Blow a trumpet in the land,' Call ye fully, and say ye: 'Be gathered, and we go in to the fenced city.'
Joel 2:15
Blow ye a trumpet in Zion, Sanctify a fast -- proclaim a restraint.