Cross reference
Leviticus 23:44
44 And Moses declared unto the children of Israel the set feasts of Jehovah.
Leviticus 21:24
24 So Moses spake unto Aaron, and to his sons, and unto all the children of Israel.
Leviticus 23:1-2
1 And Jehovah spake unto Moses, saying,
2 Speak unto the children of Israel, and say unto them, The set feasts of Jehovah, which ye shall proclaim to be holy convocations, even these are my set feasts.
Matthew 18:20
20 For where two or three are gathered together in my name, there am I in the midst of them.