1 Corinthians 3:1–4
[1] But I, brothers, could not address you as spiritual people, but as people of the flesh, as infants in Christ. [2] I fed you with milk, not solid food, for you were not ready for it. And even now you are not yet ready, [3] for you are still of the flesh. For while there is jealousy and strife among you, are you not of the flesh and behaving only in a human way? [4] For when one says, “I follow Paul,” and another, “I follow Apollos,” are you not being merely human? (ESV)
1 Corinthians 6:1–8
[1] When one of you has a grievance against another, does he dare go to law before the unrighteous instead of the saints? [2] Or do you not know that the saints will judge the world? And if the world is to be judged by you, are you incompetent to try trivial cases? [3] Do you not know that we are to judge angels? How much more, then, matters pertaining to this life! [4] So if you have such cases, why do you lay them before those who have no standing in the church? [5] I say this to your shame. Can it be that there is no one among you wise enough to settle a dispute between the brothers, [6] but brother goes to law against brother, and that before unbelievers? [7] To have lawsuits at all with one another is already a defeat for you. Why not rather suffer wrong? Why not rather be defrauded? [8] But you yourselves wrong and defraud—even your own brothers!