Leviticus 23:21

23:21 “‘On this very day you must proclaim an assembly; it is to be a holy assembly for you. You must not do any regular work. This is a perpetual statute in all the places where you live throughout your generations.

Leviticus 23:37

23:37 “‘These are the appointed times of the Lord that you must proclaim as holy assemblies to present a gift to the Lord – burnt offering, grain offering, sacrifice, and drink offerings, each day according to its regulation,