Joel 2:15

Blow a trumpet in Zion [warning of impending judgment],
Dedicate a fast [as a day of restraint and humility], call a solemn assembly.

Joel 1:14

Consecrate a fast,
Proclaim a solemn assembly,
Gather the elders
And all the inhabitants of the land
To the house of the Lord your God,
And cry out to the Lord [in penitent pleadings].

Numbers 10:3

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).

2 Kings 10:20

Jehu said, “Consecrate a festive assembly (celebration) for Baal.” And they proclaimed it.

Now in the fifth year of Jehoiakim the son of Josiah, king of Judah, in the ninth month, a fast was proclaimed before the Lord for all the people in Jerusalem and all the people who came to Jerusalem from the cities of Judah.

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,

1 Kings 21:9

Now in the letters she wrote, “Proclaim a fast and seat Naboth at the head of the people;

1 Kings 21:12

They proclaimed a fast and seated Naboth at the head of the people.

Treasury of Scripture Knowledge

Summary

Joel 2:15

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

Sanctify

General references

Numbers 10:3

Bible References