8 Bible Verses about Division Among Christians

And certain persons, having come down from Judaea, taught the brethren, If ye shall not have been circumcised according to the custom of Moses, ye cannot be saved. A commotion therefore having taken place, and no small discussion on the part of Paul and Barnabas against them, they arranged that Paul and Barnabas, and certain others from amongst them, should go up to Jerusalem to the apostles and elders about this question. They therefore, having been set on their way by the assembly, passed through Phoenicia and Samaria, relating the conversion of those of the nations. And they caused great joy to all the brethren.read more.
And being arrived at Jerusalem, they were received by the assembly, and the apostles, and the elders, and related all that God had wrought with them. And some of those who were of the sect of the Pharisees, who believed, rose up from among them, saying that they ought to circumcise them and enjoin them to keep the law of Moses.

But I beseech you, brethren, to consider those who create divisions and occasions of falling, contrary to the doctrine which ye have learnt, and turn away from them.

Now I exhort you, brethren, by the name of our Lord Jesus Christ, that ye all say the same thing, and that there be not among you divisions; but that ye be perfectly united in the same mind and in the same opinion. For it has been shewn to me concerning you, my brethren, by those of the house of Chloe, that there are strifes among you. But I speak of this, that each of you says, I am of Paul, and I of Apollos, and I of Cephas, and I of Christ.read more.
Is the Christ divided? has Paul been crucified for you? or have ye been baptised unto the name of Paul?

for ye are yet carnal. For whereas there are among you emulation and strife, are ye not carnal, and walk according to man?

Dare any one of you, having a matter against another, prosecute his suit before the unjust, and not before the saints?

For first, when ye come together in assembly, I hear there exist divisions among you, and I partly give credit to it.

See to dogs, see to evil workmen, see to the concision.

They went out from among us, but they were not of us; for if they had been of us, they would have surely remained with us, but that they might be made manifest that none are of us.