Numbers 9:3-5

Complete Jewish Bible

³ On the fourteenth day of this month, at dusk, you are to observe it — at its designated time. You are to observe it according to all its regulations and rules.” ⁴ Moshe told the people of Isra’el to observe Pesach. ⁵ So they observed Pesach at dusk on the fourteenth day of the month in the Sinai Desert; the people of Isra’el acted in accordance with all that Adonai had ordered Moshe.