1 Corinthians 5:8

⁶ Your glorying is not good. Know ye not that a little leaven leaveneth the whole lump?

⁷ Purge 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:

Therefore let us keep the feast, not with old leaven, neither with the leaven of malice and wickedness; but with the unleavened bread of sincerity and truth.

⁹ I wrote unto you in an epistle not to company with fornicators:

¹⁰ Yet 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.

Do read the surrounding verses too, because the context often says more than a single verse.

Compare

BSB: Therefore let us keep the feast, not with the old bread, leavened with malice and wickedness, but with the unleavened bread of sincerity and of truth.
KJV: Therefore let us keep the feast, not with old leaven, neither with the leaven of malice and wickedness; but with the unleavened bread of sincerity and truth.
WEB: Therefore let’s keep the feast, not with old yeast, neither with the yeast of malice and wickedness, but with the unleavened bread of sincerity and truth.
ASV: wherefore let us keep the feast, not with old leaven, neither with the leaven of malice and wickedness, but with the unleavened bread of sincerity and truth.
DARBY: so that let us celebrate the feast, not with old leaven, nor with leaven of malice and wickedness, but with unleavened [bread] of sincerity and truth.
BLB: so that we may keep the feast, not with old leaven, not with leaven of malice and wickedness, but with unleavened [bread] of sincerity and of truth.

ÅB: La oss derfor holde høytid, ikke med gammel surdeig eller med ondskaps og ugudelighets surdeig, men med renhets og sannhets usyrede brød!
OTB: La oss derfor holde høytiden, ikke med den gamle surdeigen, heller ikke med ondskapens og ugudelighetens surdeig, men med oppriktighetens og sannhetens usyrede brød.
B1930: La oss derfor holde høitid, ikke med gammel surdeig eller med ondskaps og ugudelighets surdeig, men med renhets og sannhets usyrede brød!

Study notes (Tyndale)

Original text and word study

Cross references

1 Peter 2:1–2
Wherefore laying aside all malice, and all guile, and hypocrisies, and envies, and all evil speakings,
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Deuteronomy 16:3
Thou shalt eat no leavened bread with it; seven days shalt thou eat unleavened bread therewith, even the bread of affliction; for thou camest forth out of the land of Egypt in haste: that thou mayest remember the day when thou camest forth out of the land of Egypt all the days of thy life.
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Exodus 12:15
Seven days shall ye eat unleavened bread; even the first day ye shall put away leaven out of your houses: for whosoever eateth leavened bread from the first day until the seventh day, that soul shall be cut off from Israel.
Read in context
Luke 12:1
In the mean time, when there were gathered together an innumerable multitude of people, insomuch that they trode one upon another, he began to say unto his disciples first of all, Beware ye of the leaven of the Pharisees, which is hypocrisy.
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Matthew 16:6
Then Jesus said unto them, Take heed and beware of the leaven of the Pharisees and of the Sadducees.
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Mark 8:15
And he charged them, saying, Take heed, beware of the leaven of the Pharisees, and of the leaven of Herod.
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Ephesians 6:24
Grace be with all them that love our Lord Jesus Christ in sincerity. Amen.
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John 1:47
Jesus saw Nathanael coming to him, and saith of him, Behold an Israelite indeed, in whom is no guile!
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