Numbers 9:7

And those men said to him, "[Although] we [are] unclean {by a dead person}, why are we hindered from presenting the offering of Yahweh at its appointed time in the midst of the {Israelites}?"

Exodus 12:27

you will say, 'It [is] a Passover sacrifice for Yahweh, who passed over the houses of the {Israelites} in Egypt when he struck Egypt; and he delivered our houses.'" And the people knelt down and they worshiped.

Numbers 9:2

"Let the {Israelites} observe the Passover at its appointed time.

Deuteronomy 16:2

And you shall offer the Passover sacrifice to Yahweh your God [from among] [your] flock and herd at the place that Yahweh will choose, to let his name dwell there.

2 Chronicles 30:17-19

For [there were] many in the assembly who did not consecrate themselves, so the Levites [were] over the killing of the Passover sacrifices for all who [were] not clean, to consecrate [them] to Yahweh.

1 Corinthians 5:7-8

Clean out the old leaven in order that you may be a new batch of dough, just as you are unleavened. For Christ our Passover has been sacrificed.

Treasury of Scripture Knowledge

Summary

And those men said unto him, We are defiled by the dead body of a man: wherefore are we kept back, that we may not offer an offering of the LORD in his appointed season among the children of Israel?

General references

Bible References

We may not offer

Numbers 9:2
"Let the {Israelites} observe the Passover at its appointed time.
Exodus 12:27
you will say, 'It [is] a Passover sacrifice for Yahweh, who passed over the houses of the {Israelites} in Egypt when he struck Egypt; and he delivered our houses.'" And the people knelt down and they worshiped.
Deuteronomy 16:2
And you shall offer the Passover sacrifice to Yahweh your God [from among] [your] flock and herd at the place that Yahweh will choose, to let his name dwell there.
2 Chronicles 30:17
For [there were] many in the assembly who did not consecrate themselves, so the Levites [were] over the killing of the Passover sacrifices for all who [were] not clean, to consecrate [them] to Yahweh.
1 Corinthians 5:7
Clean out the old leaven in order that you may be a new batch of dough, just as you are unleavened. For Christ our Passover has been sacrificed.

General references

Leviticus 23:5
In the first month, on the fourteenth of the month at the evening [is] Yahweh's Passover.
Haggai 2:13
Then Haggai said, "If one who is unclean from contact with a corpse touches any of these, will it become unclean?" The priests answered, "Yes, it will be become unclean."