8 Bible Verses about Division Among Christians

And certain having come down from Judea taught the brethren, That except ye be circumcised by Moses custom, ye cannot be saved. Therefore dissension and no small discussion having been to Paul and Barnabas with them, they arranged for Paul and Barnabas to go up, and certain others of them, to the sent and elders in Jerusalem about this question. Truly therefore the sent by the church passed through Phenice and Samaria, relating the turning back of the nations: and they made great joy to all the brethren.read more.
And having arrived at Jerusalem they were received by the church, and the sent and elders, and they announced what God did with them. And certain of them from the sect of the Pharisees having believed, rose up, saying, That they must be circumcised, and to enjoin to keep the law of Moses.

And I beseech you, brethren, to observe narrowly them having made divisions and scandals against the teaching which ye learned; and bend away from them.

And I beseech you, brethren, by the name of our Lord Jesus Christ, that ye all speak the same, and there be no divisions in you; and ye be set in order in the same mind and in the same knowledge. For it was manifested to me concerning you, my brethren, by them of Chloe, that there are contentions with you. And this I say, that each of you says, I truly am of Paul; and I of Apollos; and I of Cephas; and I of Christ.read more.
Has Christ been divided? Paul was not crucified for you? or in Paul's name were ye immersed

For yet are ye carnal: for wherefore envy in you, and strife, and divisions, are ye not carnal, and walk according to man?

Dare any of you, having an affair with another, be judged by the unjust, and not by the holy ones?

For truly first, ye coming together in the church, I hear divisions to be among you; and some part I believe.

Look out for dogs, look out for evil workmen, look out for the incision.

They went out from us, but they were not of us; for if they had been of us, they had remained with us, but, that they might be manifested, that they are not all of us.