Numbers 9:7
and said, "We are defiled upon a dead corpse, wherefore are we kept back that we may not offer an offering unto the LORD in the due season, among the children of Israel?"
Exodus 12:27
Ye shall say, 'It is the sacrifice of the LORD's Passover, which passed over the houses of the children of Israel in Egypt, as he smote the Egyptians and saved our houses.'" Then the people bowed themselves and worshipped.
Numbers 9:2
"Let the children of Israel offer Passover in his season:
Deuteronomy 16:2
Thou shalt therefore offer Passover unto the LORD thy God, and sheep and oxen in the place which the LORD shall choose to make his name dwell there.
2 Chronicles 30:17-19
And because there were many in the congregation that were not sanctified: and therefore did the Levites slay Passover for all that were not clean to sanctify them to the LORD.
1 Corinthians 5:7-8
Purge therefore the old leaven, that ye may be new dough, as ye are sweet bread. For Christ our Easter lamb is offered up for us.