Matthew 18:17

"but if he will not heed the church, let him be to you as a Gentile or a tax-gatherer.

John 9:22

This his parents said because they were afraid of the Jews, for the Jews had already agreed that if any one should confess that he was the Christ, he should be expelled from the synagogue.

John 9:34

They answered, "You were wholly born in sins, and do you teach us?" Then they cast him out.

John 16:2

"They will excommunicate you from their synagogues; indeed the time is coming when any one who kills you will suppose that he is doing God's service.

1 Corinthians 5:13

Expel that wicked man from among you.

Treasury of Scripture Knowledge

Summary

And that whosoever would not come within three days, according to the counsel of the princes and the elders, all his substance should be forfeited, and himself separated from the congregation of those that had been carried away.

Bible References

Himself separated

Matthew 18:17
"but if he will not heed the church, let him be to you as a Gentile or a tax-gatherer.
John 9:22
This his parents said because they were afraid of the Jews, for the Jews had already agreed that if any one should confess that he was the Christ, he should be expelled from the synagogue.
John 16:2
"They will excommunicate you from their synagogues; indeed the time is coming when any one who kills you will suppose that he is doing God's service.
1 Corinthians 5:13
Expel that wicked man from among you.