Numbers 9:1-3

AKJV(i) 1 And the LORD spoke to 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 Let the children of Israel also keep the passover at his appointed season. 3 In the fourteenth day of this month, at even, you shall keep it in his appointed season: according to all the rites of it, and according to all the ceremonies thereof, shall you keep it.