NOTE: This personal Bible Study, as I read and think through 1 Corinthians 1, is study not be be taken authoritatively.
Having read some of the Introduction in my ESV to 1 Corinthians, the book seems to start out with a greeting tht seems to double as a call for unity. The introduction notes pointed out that the Church at Corinth was going trhough some divisiveness. 1 Corinthians begins:
1 Paul, called by the will of God to be an apostle of Christ Jesus, and our brother Sosthenes,
2 To the church of God that is in Corinth, to those sanctified in Christ Jesus, called to be saints together with all those who in every place call upon the name of our Lord Jesus Christ, both their Lord and ours:
3 Grace to you and peace from God our Father and the Lord Jesus Christ.
Notice how the first 3 verses point to God? For me, having read the ESV Study Bible’s introduction saying that the Church at Corinth was suffering through division caused by more arrogant members this greeting subtly says “Stop arguing amongst yourselves and get back to God”, or possibly “Stop worshipping yoursleves and get back to worshipping God!”
Next, in verses 4 through 9 Paul gives thanks as he again seems to be reminding the Corinthians from where eveything flows. Love and affection is apperent in the vocabulary chosen, he is not being harsh.
Verses 10 through 17 Paul gets right to the root of the reason for this letter, the divisions amongst the members at Corinth. These verses do contain some sarcasm and slight agitation. Again he reminds them, however that they are to be followers of Christ, not man and to stop looking in amongst themselves and to look heavenward.
Verses 18 to 31 serve as a reminder that Christ is power and wisdom and the one through whom all flows – creation, power, wisdom and that God calls all to him. The message of Christ crucified is the power of God for his chosen, and dually a reminder that to those who are not saved this word is nonsense.
SUMMARY: Don’t be arrogant, and don’t follow man. Depend on and follow Jesus because it is his work that has become your salvation.