8 Bible Verses about Division Among Christians

And certain ones having come down from Judea were teaching the brethren that, Unless you may be circumcised, according to the custom of Moses, you are not able to be saved. And there being no small contention and disputation to Paul and Barnabas against them, they delegated Paul and Barnabas, and certain others of them, to go up to the apostles and elders in Jerusalem concerning this question. Then indeed they having been sent away by the church, traveled through both Phoenicia and Samaria, relating the conversion of the Gentiles: and they continued to make great joy to all the brethren.read more.
And arriving into Jerusalem, they were received by the church, and the apostles, and the elders, and they proclaimed so many things as God did with them. And certain one of those from the sect of the Pharisees having believed arose up, saying that, It is necessary to circumcise them, and to command them to keep the law of Moses.

But I exhort you, brethren, to mark those who cause divisions and stumblings, contrary to the teaching which you have learned, and depart from them.

But I exhort you, brethren, through the name of our Lord Jesus Christ, that you may all speak the same things, and that there may be no schisms among you; but you may be perfected in the same mind and in the same disposition. For it has been revealed to me concerning you, my brethren, by those who are of the house of Chloe, that there are contentions among you. And I say this, that each one says, I indeed am of Paul; and I of Apollos; and I of Cephas; and I of Christ.read more.
Is Christ divided? was Paul crucified for you? or were you baptized in the name of Paul?

for ye are yet carnal. For where there are envy and strife among you, are you not carnal, and walking about according to man?

Which one of you having a matter dares to go to law with another before the unrighteous, and not before the saints?

For in the first place, indeed you coming together, I hear that there are schisms among you; and I in part believe it.

Beware of dogs, beware of the evil workers, beware of the counterfeit circumcision.

They came out from us, but they were not of us; for if they were of us, they would have remained with us: but in order that they might be made manifest that they are not all of us.