1 Corinthians 5:7-9

New International Version

⁷ Get rid of the old yeast, so that you may be a new unleavened batch—as you really are. For Christ, our Passover lamb, has been sacrificed.^{(A) 8} Therefore let us keep the Festival, not with the old bread leavened with malice and wickedness, but with the unleavened bread^(B) of sincerity and truth.

⁹ I wrote to you in my letter not to associate^(C) with sexually immoral people—