Numbers 9:3-5

Darby Translation

³ on the fourteenth day in this month between the two evenings, ye shall hold it at its set time; according to all the rites of it, and according to all the ordinances thereof shall ye hold it.

⁴ And Moses spoke to the children of Israel, that they should hold the passover.

⁵ And they held the passover in the first [month] on the fourteenth day of the month, between the two evenings, in the wilderness of Sinai: according to all that Jehovah had commanded Moses, so did the children of Israel.