1Corinthians:5:6-8
nkjv@1Corinthians:5:6 @ Your glorying is not good. Do you not know that a little leaven leavens the whole lump?
nkjv@1Corinthians:5:7 @ Therefore purge out the old leaven, that you may be a new lump, since you truly are unleavened. For indeed Christ, our Passover, was sacrificed for us.
nkjv@1Corinthians:5:8 @ Therefore let us keep the feast, not with old leaven, nor with the leaven of malice and wickedness, but with the unleavened bread of sincerity and truth.