1 Corinthians 5:7-13 Clean out the old leaven, that you may be a new lump, since you really are unleavened. For Christ our passover has been sacrificed for us:

RKJNT⁽ⁱ⁾ ⁷ Clean out the old leaven, that you may be a new lump, since you really are unleavened. For Christ our passover has been sacrificed for us: ⁸ Therefore let us keep the feast, not with old leaven, the leaven of malice and wickedness; but with the unleavened bread of sincerity and truth. ⁹ I wrote to you in a letter not to keep company with the sexually immoral: ¹⁰ Not at all meaning the immoral of this world, or the covetous, or swindlers, or idolaters; for then you would have to go out of the world. ¹¹ But now I write to you not to keep company with any man who is called a brother if he is sexually immoral, or covetous, or an idolater, or a slanderer, or a drunkard, or an swindler; with such a one do not even eat. ¹² For what have I to do with judging those who are outside? are you not to judge those who are within? ¹³ Those who are outside God judges. Put out from among yourselves the wicked person.