1 Corinthians 5:7-8

purge out the old leaven, that you may be a new mass, since you should be without leaven. for Christ our paschal lamb has been sacrificed for us.

Treasury of Scripture Knowledge

Summary

In the first month, in the fourteenth day of the month, ye shall have the passover, a feast of seven days; unleavened bread shall be eaten.

Bible References

Ye shall

1 Corinthians 5:7
purge out the old leaven, that you may be a new mass, since you should be without leaven. for Christ our paschal lamb has been sacrificed for us.