1 Corinthians 7:12

7:12 To the rest I say – I, not the Lord – if a brother has a wife who is not a believer and she is happy to live with him, he should not divorce her.

1 Corinthians 8:13

8:13 For this reason, if food causes my brother or sister to sin, I will never eat meat again, so that I may not cause one of them to sin.

1 Corinthians 16:12

16:12 With regard to our brother Apollos: I strongly encouraged him to visit you with the other brothers, but it was simply not his intention to come now. He will come when he has the opportunity.