Numbers 9
1 Ref And Jehovah spake unto Moses in the wilderness of Sinai, in the first month of the second year after they were come out of the land of Egypt, saying,
2 Ref Moreover let the children of Israel keep the passover in its appointed season.
3 Ref In the fourteenth day of this month, at even, ye shall keep it in its appointed season: according to all the statutes of it, and according to all the ordinances thereof, shall ye keep it.