Deuteronomy 16:8

16:8 You must eat bread made without yeast for six days. The seventh day you are to hold an assembly for the Lord your God; you must not do any work on that day.

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 2:15

2:15 Blow the trumpet in Zion.

Announce a holy fast;

proclaim a sacred assembly!