Numbers 9:5-7

New Revised Standard Version, Anglicised

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, ⁷ and said to him, ‘Although we are unclean through touching a corpse, why must we be kept from presenting the Lord’s offering at its appointed time among the Israelites?’