1 Corinthians 5:9-13
9) I wrote to you in my epistle not to keep company with sexually immoral people. 10) Yet I certainly did not mean with the sexually immoral people of this world, or with the covetous, or extortioners, or idolaters, since then you would need to go out of the world. 11) But now I have written to you not to keep company with anyone named a brother, who is sexually immoral, or covetous, or an idolater, or a reviler, or a drunkard, or an extortioner—not even to eat with such a person.
12) For what have I to do with judging those also who are outside? Do you not judge those who are inside? 13 But those who are outside God judges. Therefore “put away from yourselves the evil person.” NKJV

Is every Christian obligated to follow through with this? Or is this just for the Corinthian church and/or current church? And let's say, for example, that a Christian husband leaves a wife without permissible reason (no sexual immorality from the wife). Time passes by and he is now living with someone else. If every Christian is obligated to follow this, would this man's Christian offspring be obligated to keep away from him? Or are they still to honor him? And what constitutes keeping company? Does working with someone apply? Or does it only mean voluntary, "Hey let's hang out,"? May God bless you all.

http://allthisstuff.weebly.com/