Joel 1:14

Sanctify a fast. Call a solemn assembly. Gather the elders, and all the inhabitants of the land, to the house of Yahweh, your God, and cry to Yahweh.

Joel 2:15-16

Blow the trumpet in Zion! Sanctify a fast. Call a solemn assembly.

Jonah 3:8

but let them be covered with sackcloth, both man and animal, and let them cry mightily to God. Yes, let them turn everyone from his evil way, and from the violence that is in his hands.

Leviticus 23:36

Seven days you shall offer an offering made by fire to Yahweh. On the eighth day shall be a holy convocation to you; and you shall offer an offering made by fire to Yahweh. It is a solemn assembly; you shall do no regular work.

Deuteronomy 29:10-11

You stand this day all of you before Yahweh your God; your heads, your tribes, your elders, and your officers, even all the men of Israel,

2 Chronicles 20:3-4

Jehoshaphat was alarmed, and set himself to seek to Yahweh. He proclaimed a fast throughout all Judah.

2 Chronicles 20:13

All Judah stood before Yahweh, with their little ones, their wives, and their children.

Nehemiah 8:18

Also day by day, from the first day to the last day, he read in the book of the law of God. They kept the feast seven days; and on the eighth day was a solemn assembly, according to the ordinance.

Nehemiah 9:2-3

The seed of Israel separated themselves from all foreigners, and stood and confessed their sins, and the iniquities of their fathers.

Treasury of Scripture Knowledge

Summary

Sanctify ye a fast, call a solemn assembly, gather the elders and all the inhabitants of the land into the house of the LORD your God, and cry unto the LORD,

Cry

Bible References

Sanctify

Joel 2:15
Blow the trumpet in Zion! Sanctify a fast. Call a solemn assembly.
2 Chronicles 20:3
Jehoshaphat was alarmed, and set himself to seek to Yahweh. He proclaimed a fast throughout all Judah.

The elders

Deuteronomy 29:10
You stand this day all of you before Yahweh your God; your heads, your tribes, your elders, and your officers, even all the men of Israel,
2 Chronicles 20:13
All Judah stood before Yahweh, with their little ones, their wives, and their children.
Nehemiah 9:2
The seed of Israel separated themselves from all foreigners, and stood and confessed their sins, and the iniquities of their fathers.

Cry

Jonah 3:8
but let them be covered with sackcloth, both man and animal, and let them cry mightily to God. Yes, let them turn everyone from his evil way, and from the violence that is in his hands.