1 Corinthians 5:7–8

7 Purge out therefore the old leaven, that ye may be a new lump, as ye are unleavened. For even Christ our passover is sacrificedb for us: 8 Therefore let us keep the feastc, not with old leaven, neither with the leaven of malice and wickedness; but with the unleavened bread of sincerity and truth.

b	is sacrificed; or, is slain
c	the feast: or, holyday