Matthew 18:17

And, if he disregard them, tell it to the assembly; and, if he disregard the assembly also, let him be to you as the gentile and the tax-collector.

John 9:22

These things said his parents, because they were fearing the Jews; for the Jews had agreed already, that, if any one should confess Him to be Christ, he should be put out of the synagogue.

John 9:34

They answered and said to him, You were altogether born in sins, and do you teach us!" And they cast him out.

John 16:2

They will put you out of the synagogues; yea, an hour is coming, that every one who kills you will think that he is offering service to God.

1 Corinthians 5:13

But those who are without God judgeth. Put away the wicked man from among yourselves.

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
And, if he disregard them, tell it to the assembly; and, if he disregard the assembly also, let him be to you as the gentile and the tax-collector.
John 9:22
These things said his parents, because they were fearing the Jews; for the Jews had agreed already, that, if any one should confess Him to be Christ, he should be put out of the synagogue.
John 16:2
They will put you out of the synagogues; yea, an hour is coming, that every one who kills you will think that he is offering service to God.
1 Corinthians 5:13
But those who are without God judgeth. Put away the wicked man from among yourselves.