1 Corinthians 3:1-4

The Ecumenical Council promotes a united front for the Body of Christ. a community bound together in the love of Christ will draw others into it. 

There are more similarities than differences and the differences can be overcome in the Blood of the Lamb.

Whoever believes in Jesus will not perish but have eternal life.

The Corinthian believers demonstrated their immaturity through divisiveness and failure to grasp the significance of Jesus’ death on the cross. Paul asserts that such behavior is inappropriate for those in Christ.Paul does not fault them for being human, but he does fault them for their unethical conduct. As people who assume they are wise, they should have known to behave better.  

Jealousy and strife are two actions that harm the unity of the Church both are characteristic of sophists. Faithlife Bible.

sophist | ˈsäfəst |

a paid teacher of philosophy and rhetoric in ancient Greece, associated in popular thought with moral skepticism and specious reasoning.

• a person who reasons with clever but fallacious arguments.

Paul did not expect the Corinthians to be mature in Christ at the time of their conversion. By placing their faith in Christ, they had been justified. They had been united with Him and his death on the Cross, and the Spirit of God had come to live in them. They were considered righteous before God because of Jesus’ righteousness. Thus when Paul first established the church at Corinth he taught them as new converts, as those justified. Yet he expected them to grow in their faith—that is, become sanctified. The behavior of the Christians in Corinth should have begun to line up with their righteous position in Christ. NKJ Bible.

1 Corinthians 3:1–4 (NKJv)

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 behaving like mere men? ⁴ For when one says, “I am of Paul,” and another, “I am of Apollos,” are you not carnal?

 Peter 2:2 (NKJV)

² as newborn babes, desire the pure milk of the word, that you may grow thereby,