Shared ground
Paul is dealing with a community problem: rivalry and status-seeking inside the church. He says he has used himself and Apollos as a “worked example” so the Corinthians can learn the point without immediately targeting other individuals (explicit).
The “limit” he wants them to learn is “not to think beyond what is written” (explicit). In context, this functions as a brake on speculative ranking of leaders and on self-important judgments that create parties and contempt.
Paul then attacks boasting at its roots with three questions (explicit). Distinctions among people are not self-generated in a way that justifies pride. Whatever they “have” is “received,” so bragging “as if” it were self-made is incoherent.
Where interpretation differs
1) What counts as “what is written.” Some read it narrowly: Paul means the Scriptures, especially the passages he has already used earlier in the letter to undercut pride and human boasting (1 Corinthians 1:31). Others read it more broadly: not just Scripture, but the already-given apostolic teaching Paul has put in writing to them in this letter, so they stop inventing standards for ranking teachers.
2) Who “makes you different.” Many take the implied answer to be God, as the giver behind every advantage. Others hear the question as also exposing how “differences” can be socially constructed (honor, education, associations), so the Corinthians’ comparisons are unstable grounds for pride—whether or not Paul is making a detailed claim about every cause behind human differences.
3) How wide “received” is. Some hear it mainly about spiritual gifts and roles in the church (since the dispute concerns leaders, wisdom, and status). Others read it as a sweeping claim: every advantage a person has—abilities, opportunities, honor, even the capacity to believe—is something received rather than self-originated.
Why the disagreement exists
The key phrases are short and elastic: “what is written,” “makes you different,” and “received” can be read narrowly from the immediate dispute or broadly as general theology. Paul’s rhetorical questions are designed to humble boasting, not to map every possible cause behind human distinctives, so readers differ on how much to load into them.
What this passage clearly contributes
The passage ties humility to the source of one’s advantages (explicit): boasting collapses when gifts are recognized as received. It also connects pride to community damage (explicit): being “puffed up” turns into people taking sides “against one another.” Finally, it presents written, God-given instruction as a boundary against status games and rival camps (explicit), even if readers debate whether Paul means Scripture alone or Scripture plus his written teaching here (inference).