Numbers 10:3

And when they shall blow them, all the congregation shall join themselves to thee at the door of the tabernacle of the testimony.

Jeremiah 4:5

Declare ye in Judah and publish in Jerusalem and say, Blow ye the shofar in the land; cry, gather together, and say, Assemble yourselves, and let us go into the defenced cities.

Joel 2:15-16

Blow the shofar in Zion, sanctify a fast, call a solemn assembly:

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 ye in Judah and publish in Jerusalem and say, Blow ye the shofar in the land; cry, gather together, and say, Assemble yourselves, and let us go into the defenced cities.
Joel 2:15
Blow the shofar in Zion, sanctify a fast, call a solemn assembly: