Leviticus 23:36

23:36 For seven days you must present a gift to the Lord. On the eighth day there is to be a holy assembly for you, and you must present a gift to the Lord. It is a solemn assembly day; you must not do any regular work.

Leviticus 23:2

23:2 “Speak to the Israelites and tell them, ‘These are the Lord’s appointed times which you must proclaim as holy assemblies – my appointed times:

Leviticus 7:9

7:9 Every grain offering which is baked in the oven or made in the pan or on the griddle belongs to the priest who presented it.

Nehemiah 8:18

8:18 Ezra read in the book of the law of God day by day, from the first day to the last. They observed the festival for seven days, and on the eighth day they held an assembly as was required.

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.