1 Corinthians 5:6-8
Your glorying is not good. Know ye not that a little leaven leaveneth the whole lump? 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.
1 Corinthians 5:9-13
I wrote unto you in an epistle not to company with fornicators: 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. But 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. For what have I to do to judge them also that are without? do not ye judge them that are within? But them that are without God judgeth. Therefore put away from among yourselves that wicked person.
Sometimes as believers fail to put away people that are wicked. If we allow ourselves to fellowship with the wicked, then our unleavened bread will become leavened. It only takes a little of the leavened to leavened the whole bread. If we are allowing ourselves to be sensentive to those that are wicked, then we should deny ourselves. It doesn’t take much for us to deny ourselves because we are taking off unnecessary weight so that we will make our lives much easier.