3 Bible Verses about Warnings Of Evil Associations

I wrote to you in that letter, not to keep company with fornicators;

Be not strangely yoked with unbelievers; for what fellowship hath righteousness with unrighteousness? Or what communion hath light with darkness?

But this is what I wrote you, not to keep company with any one called a brother, if he be a fornicator, or covetous, or an idolater, or a reviler, or a drunkard, or an extortioner; with such a one not even to eat.