3 Bible Verses about Warnings Of Evil Associations

In my letter I wrote that you were not to associate with the immoral.

[Keep out of all incongruous ties with unbelievers. What have righteousness and iniquity in common, or how can light associate with darkness?

What I now write is that you are not to associate with any so-called brother who is immoral or lustful or idolatrous or given to abuse or drink or robbery. Associate with him! Do not even eat with him!