Numbers 9:4-6

New Revised Standard Version, Anglicised Catholic Edition

⁴ So Moses told the Israelites that they should keep the passover. ⁵ They kept the passover in the first month, on the fourteenth day of the month, at twilight,^[a] in the wilderness of Sinai. Just as the Lord had commanded Moses, so the Israelites did. ⁶ Now there were certain people who were unclean through touching a corpse, so that they could not keep the passover on that day. They came before Moses and Aaron on that day,