4 When one says 'I follow Paul,' and another 'I follow Apollos,' are not you like other men?
1 Corinthians 3:4 Cross References - Twentieth_Century
1 Corinthians 1:12
12 I mean this, that every one of you says either 'I follow Paul,' or 'I Apollos,' or 'I Kephas,' or 'I Christ.'
1 Corinthians 3:3
3 While there exist among you jealousy and party feeling, is it not true that you are worldly, and are acting merely as other men do?
1 Corinthians 4:6
6 All this, Brothers, I have, for your sakes, applied to Apollos and myself, so that, from our example, you may learn to observe the precept-'Keep to what is written,' that none of you may speak boastfully of one teacher to the disparagement of another.