1 Corinthians 5:8
King James Version
“Therefore let us keep the feast, not with old leaven, neither with the leaven of malice and wickedness; but with the unleavened of sincerity and truth.”
Context
5To deliver such an one unto Satan for the destruction of the flesh, that the spirit may be saved in the day of the Lord Jesus.
6Your glorying not good. Know ye not that a little leaven leaveneth the whole lump?
7Purge out therefore the old leaven, that ye may be a new lump, as ye are unleavened. For even Christ our passover is sacrificed for us:
8Therefore let us keep the feast, not with old leaven, neither with the leaven of malice and wickedness; but with the unleavened of sincerity and truth.
9I wrote unto you in an epistle not to company with fornicators:
10Yet not altogether with the fornicators of this world, or with the covetous, or extortioners, or with idolaters; for then must ye needs go out of the world.
11But now I have written unto you not to keep company, if any man that is called a brother be a fornicator, or covetous, or an idolater, or a railer, or a drunkard, or an extortioner; with such an one no not to eat.