12 I'll tell you exactly what I was told: You're all picking sides, going around saying, "I'm on Paul's side," or "I'm for Apollos," or "Peter is my man," or "I'm in the Messiah group." 13 I ask you, "Has the Messiah been chopped up in little pieces so we can each have a relic all our own? Was Paul crucified for you? Was a single one of you baptized in Paul's name?"
Matthew Henry's Commentary on 1 Corinthians 1:12-13
Commentary on 1 Corinthians 1:10-16
(Read 1 Corinthians 1:10-16)
In the great things of religion be of one mind; and where there is not unity of sentiment, still let there be union of affection. Agreement in the greater things should extinguish divisions about the lesser. There will be perfect union in heaven, and the nearer we approach it on earth, the nearer we come to perfection. Paul and Apollos both were faithful ministers of Jesus Christ, and helpers of their faith and joy; but those disposed to be contentious, broke into parties. So liable are the best things to be corrupted, and the gospel and its institutions made engines of discord and contention. Satan has always endeavoured to stir up strife among Christians, as one of his chief devices against the gospel. The apostle left it to other ministers to baptize, while he preached the gospel, as a more useful work.