Numbers 9:1-3

MSB(i) 1 In the first month of the second year after Israel had come out of the land of Egypt, the LORD spoke to Moses in the Wilderness of Sinai: 2 “The Israelites are to observe the Passover at its appointed time. 3 You are to observe it at the appointed time, at twilight on the fourteenth day of this month, in accordance with its statutes and ordinances.”