2“The Israelites are to observe the Passover at its appointed time.
3You are to observe it at the appointed time, at twilight on the fourteenth day of this month, in accordance with its statutes and ordinances.”
4So Moses told the Israelites to observe the Passover,
5and they did so in the Wilderness of Sinai, at twilight on the fourteenth day of the first month. The Israelites did everything just as the LORD had commanded Moses.
— Numbers 9:2-5