For while one says, I am of Paul; and another, I am of Apollos; are you not carnal?
Read Chapter 3
John Chrysostom
AD 407
It was the factionalism of the Corinthians that produced jealousy, and that in turn made them carnal. Once they were carnal, they were no longer free to hear truths of a more spiritual kind.
And he points out that this, so far from helping them at all or causing them to acquire any thing, had even become an obstacle to their profiting in the greater things. For this it was which brought forth jealousy, and jealousy had made them carnal; and the having become carnal left them not at liberty to hear truths of the sublimer sort.