Numbers 9:2-4

American Standard Version

² Moreover let the children of Israel keep the passover in its appointed season. ³ In the fourteenth day of this month, ^[a]at even, ye shall keep it in its appointed season: according to all the statutes of it, and according to all the ordinances thereof, shall ye keep it. ⁴ And Moses spake unto the children of Israel, that they should keep the passover.