Bad examples of brotherly "love".
1And I, brethren, could not speak unto you as unto spiritual, but as unto carnal,
even as unto babes in Christ.
2I have fed you with milk, and not with meat: for hitherto ye were not able
to bear it, neither yet now are ye able.
3For ye are yet carnal: for whereas
there is among you envying, and strife, and divisions, are ye not carnal, and walk as men?
4For while one saith, I am of Paul; and another, I
am of Apollos; are ye not carnal?
Are you asking "How to identify a carnal christian based on 1 Cor 3:1-4?
Would it be saying I am a Calvinist, or I am an Arminian? Or would it be when we see strife, divisions?