7 Bible Verses about Division Among Christians

But certain individuals came down from Jerusalem and taught the brothers that "unless you get circumcised after the custom of Moses you cannot be saved." As a sharp dispute and controversy sprang up between them and Paul and Barnabas, it was arranged that Paul and Barnabas, along with some others of their number, should go up to Jerusalem to see the apostles and presbyters at Jerusalem about this question. The church sped them on their journey, and they passed through both Phoenicia and Syria informing the brothers, to the great joy of all, that the Gentiles were turning to God.read more.
On arriving at Jerusalem they were received by the church, the apostles and the presbyters, and they reported how God had been with them and what he had done. But some of the believers who belonged to the Pharisaic party got up and said, "Gentiles must be circumcised and told to observe the law of Moses."

Brothers, I beg of you to keep your eye on those who stir up dissensions and put hindrances in your way, contrary to the doctrine which you have been taught. Avoid them.

Brothers, for the sake of our Lord Jesus Christ I beg of you all to drop these party-cries. There must be no cliques among you; you must regain your common temper and attitude. For Chloe's people inform me that you are quarrelling. By 'quarrelling' I mean that each of you has his party-cry, "I belong to Paul," "And I to Apollos," "And I to Cephas," "And I to Christ."read more.
Has Christ been parcelled out? Was it Paul who was crucified for you? Was it in Paul's name that you were baptized?

you are still worldly. For with jealousy and quarrels in your midst, are you not worldly, are you not behaving like ordinary men?

When any of you has a grievance against his neighbour, do you dare to go to law in a sinful pagan court, instead of laying the case before the saints?

First of all, in your church-meetings I am told that cliques prevail. And I partly believe it.

They withdrew from us, but they did not belong to us; had they belonged to us, they would have remained with us, but they withdrew to make it plain that they are none of us.