At other times it may be appropriate to, as it were, let their foolishness speak for itself. Sometimes people will be talking about love or justice, when really they are just defending licentiousness or prejudice. Sometimes people just want to know if you care about what is happening with them or someone they are close to. By listening and discerning, it is possible to speak to the real issues underlying people's arguments, without being trapped by someone else's foolishness. Brothers, if someone is caught in a sin, you who are spiritual should restore him gently.
Foolishness is delusional, making the foolish person wise in their own estimation.
As hard as it can be to admit that someone else with whom we disagree is right about something, we are all familiar with how hard it can be to admit when we are wrong, especially if others are watching. Do not be surprised that people will hold foolish convictions with loud impatience. We can always provide an example in thought, word and deed that commends itself without argument. Now there were some present at that time who told Jesus about the Galileans whose blood Pilate had mixed with their sacrifices. But unless you repent, you too will all perish.