Numbers 9:4

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.”

4 So Moses told the Israelites to observe the Passover,

5 and 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.

6 But there were some men who were unclean due to a dead body, so they could not observe the Passover on that day. And they came before Moses and Aaron that same day

7 and said to Moses, “We are unclean because of a dead body, but why should we be excluded from presenting the LORD’s offering with the other Israelites at the appointed time?”

8 “Wait here until I find out what the LORD commands concerning you,” Moses replied.

Read all of Numbers 9