Brothers, I was not able to speak to you as spiritual people but as people of the flesh, as babies in Christ.
References for 1 Corinthians 3:1
I fed you milk, not solid food, because you were not yet able to receive it. In fact, you are still not able,
because you are still fleshly. For since there is envy and strife among you, are you not fleshly and living like ordinary people?
References for 1 Corinthians 3:3
For whenever someone says, "I'm with Paul," and another, "I'm with Apollos," are you not [typical] men?
References for 1 Corinthians 3:4