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.