1 Corinthians 9:8

9:8 Am I saying these things only on the basis of common sense, or does the law not say this as well?

1 Corinthians 3:3

3:3 for you are still influenced by the flesh. For since there is still jealousy and dissension among you, are you not influenced by the flesh and behaving like unregenerate people?

1 Corinthians 15:32

15:32 If from a human point of view I fought with wild beasts at Ephesus, what did it benefit me? If the dead are not raised, let us eat and drink, for tomorrow we die.