Two fundamental questions:
- Is mockery ever morally permissible?
- If yes, under what conditions?
In answer to the first question, we must answer with yes. For our Lord Himself engaged in mockery (cf. Matthew 23:24). Since, therefore, our Lord is utterly without sin (cf. Hebrews 4:15), it follows that mockery is not intrinsically sinful and therefore can be morally permissible.
Answering the second question is more difficult, but if we follow the example of our Lord, we can identify various conditions under which mockery is morally permissible. When Christ engaged in mockery, the chief reasons for doing so were to combat error and to teach truth. Christ engages in mockery in order to repudiate the hypocrisy of the scribes and Pharisees, and to teach the truth that the interior life is more important than the exterior (cf. Matthew 23:27-28). So, using mockery for these purposes is morally legitimate. Purposes for engaging in mockery that are obviously not morally legitimate would include, for example, wanting to calumniate someone or wanting to simply manifest cruelty by inflicting emotional pain on someone.