One saith, I am of Paul. — These and the following words explain exactly what the Apostle means by their being “carnal,” and walking after a merely human manner. Only two of the factions — those of Paul and of Apollos — are mentioned as types of the rest. The factious spirit was in each and all the “parties” the same, but the particular difference between the teaching of the higher wisdom and the simpler truths of the gospel was best illustrated by these two.
The selection for rebuke of those who called them selves by the Apostle’s own name was, no doubt, intended by him to show that it was no matter of personal jealousy on his part. He specially condemns those who magnified his name. It is for his Master alone that he is jealous.
Are ye not carnal? — Better, are ye not only men? carrying on the idea expressed in 1 Corinthians 3:3.