8 Bible Verses about Division Among Christians

Then some men came down from Judea and started to teach the brothers, "Unless you are circumcised according to the Law of Moses, you can't be saved." Paul and Barnabas had quite a dispute and argument with them. So Paul and Barnabas and some of the others were appointed to go up to Jerusalem to confer with the apostles and elders about this question. They were sent on their way by the church, and as they were going through Phoenicia and Samaria they told of the conversion of the gentiles and brought great joy to all the brothers. read more.
When they arrived in Jerusalem, they were welcomed by the church, the apostles, and the elders, and they reported everything that God had done through them. But some believers from the party of the Pharisees stood up and said, "The gentiles must be circumcised and ordered to keep the Law of Moses."

Now I urge you, brothers, to watch out for those who create divisions and sinful enticements that oppose the teaching you have learned. Stay away from them,

Brothers, in the name of our Lord Jesus the Messiah, I urge all of you to be in agreement and not to have divisions among you, so that you may be perfectly united in your understanding and opinions. My brothers, some members of Chloe's family have made it clear to me that there are quarrels among you. This is what I mean: Each of you is saying, "I belong to Paul," or "I belong to Apollos," or "I belong to Cephas," or "I belong to the Messiah."read more.
Is the Messiah divided? Paul wasn't crucified for you, was he? You weren't baptized in Paul's name, were you?

That's because you are still worldly. As long as there is jealousy and quarreling among you, you are worldly and living by human standards, aren't you?

When one of you has a complaint against another, does he dare to take the matter before those who are unrighteous and not before the saints?

For in the first place, I hear that when you gather as a church there are divisions among you, and I partly believe it.

Beware of the dogs! Beware of the evil workers! Beware of the mutilators!

They left us, but they were not part of us, for if they had been part of us, they would have stayed with us. Their leaving made it clear that none of them was really part of us.