2 Chronicles 20:3

20:3 Jehoshaphat was afraid, so he decided to seek the Lord’s advice. He decreed that all Judah should observe a fast.

Ezra 8:21

8:21 I called for a fast there by the Ahava Canal, so that we might humble ourselves before our God and seek from him a safe journey for us, our children, and all our property.

Jeremiah 36:9

36:9 All the people living in Jerusalem and all the people who came into Jerusalem from the towns of Judah came to observe a fast before the Lord. The fast took place in the ninth month of the fifth year that Jehoiakim son of Josiah was ruling over Judah.

Joel 1:14

1:14 Announce a holy fast;

proclaim a sacred assembly.

Gather the elders and all the inhabitants of the land

to the temple of the Lord your God,

and cry out to the Lord.

Joel 2:12-17

An Appeal for Repentance

2:12 “Yet even now,” the Lord says,

“return to me with all your heart –

with fasting, weeping, and mourning.

Tear your hearts,

not just your garments!”

2:13 Return to the Lord your God,

for he is merciful and compassionate,

slow to anger and boundless in loyal love – often relenting from calamitous punishment.

2:14 Who knows?

Perhaps he will be compassionate and grant a reprieve,

and leave blessing in his wake –

a meal offering and a drink offering for you to offer to the Lord your God!

2:15 Blow the trumpet in Zion.

Announce a holy fast;

proclaim a sacred assembly!

2:16 Gather the people;

sanctify an assembly!

Gather the elders;

gather the children and the nursing infants.

Let the bridegroom come out from his bedroom

and the bride from her private quarters.

2:17 Let the priests, those who serve the Lord, weep

from the vestibule all the way back to the altar.

Let them say, “Have pity, O Lord, on your people;

please do not turn over your inheritance to be mocked,

to become a proverb among the nations.

Why should it be said among the peoples,

“Where is their God?”