1 Corinthians 3:1-4 New King James Version (NKJV)
Sectarianism Is Carnal
3 And I, brethren, could not speak to you as to spiritual people but as to carnal, as to babes in Christ. 2 I fed you with milk and not with solid food; for until now you were not able to receive it, and even now you are still not able; 3 for you are still carnal. For where there are envy, strife, and divisions among you, are you not carnal and [a]behaving like mere men? 4 For when one says, “I am of Paul,” and another, “I am of Apollos,” are you not carnal?