In the First Epistle of St. Paul to the Corinthians, we see Paul in two distinct places giving warnings to the Corinthian Church about boasting about their ministers. The Church in Corinth had been built up by St. Paul with the help of Apollos, an Alexandrian Jewish convert who was known for his erudition and powerful preaching. Shortly after the founding of the Church of Corinth, around 55 AD, dissension and schism broke out among the Christians there over sectarian disputes. It is regarding these disputes that Paul addresses the following passage:
"Now I beseech you, brethren, by the name of our Lord Jesus Christ, that you all speak the same thing and that there be no schisms among you: but that you be perfect in the same mind and in the same judgment. For it hath been signified unto me, my brethren, of you, by them that are of the house of Chloe, that there are contentions among you. Now this I say, that every one of you saith: I indeed am of Paul; and I am of Apollos; and I of Cephas; and I of Christ. Is Christ divided? Was Paul then crucified for you? Or were you baptized in the name of Paul?...For Christ sent me not to baptize, but to preach the gospel: not in wisdom of speech, lest the cross of Christ should be made void" (1 Cor. 1:10-13, 17).
Read more: I am of Paul, I am of Apollos