1 Corinthians 1:6

1:6 just as the testimony about Christ has been confirmed among you –

1 Corinthians 11:1

11:1 Be imitators of me, just as I also am of Christ.

1 Corinthians 14:38

14:38 If someone does not recognize this, he is not recognized.

1 Corinthians 15:33

15:33 Do not be deceived: “Bad company corrupts good morals.” ¹ 

[15:33]  ¹ sn A quotation from the poet Menander, Thais 218, which Paul uses in a proverbial sense.