The fact that Scripture is silent regarding humour generally and, more particularly, regarding humour in preaching, should instil humility in anybody who addresses this topic.
Some Christians might agree with the words of the Earl of Chesterfield (1694-1773) who said: 'In my mind, there is nothing so illiberal and so ill-bred, as audible laughter', especially if we add the words 'in church'. Others, however, may feel that the need to discuss such an issue is not only pedantic but is also rather pathetic.
A time to laugh?
There are references to 'laughter' in both the Old and New Testaments but they do not illuminate this issue for us. In Genesis we encounter the incredulous and inappropriate laugh of Sarah. There are several Old Testament references to God's derisive laughter at his enemies. Ecclesiastes tells us there is 'a time to weep and a time to laugh' (3.4). There are appropriate occasions for regrets and for rejoicing. There are times for crying and times for celebrating.