1 Corinthians 3:5

3:5 What is Apollos, really? Or what is Paul? Servants through whom you came to believe, and each of us in the ministry the Lord gave us.

1 Corinthians 6:7

6:7 The fact that you have lawsuits among yourselves demonstrates that you have already been defeated. Why not rather be wronged? Why not rather be cheated?

1 Corinthians 7:16

7:16 For how do you know, wife, whether you will bring your husband to salvation? Or how do you know, husband, whether you will bring your wife to salvation?

1 Corinthians 15:29

15:29 Otherwise, what will those do who are baptized for the dead? If the dead are not raised at all, then why are they baptized for them?