1078) For a few years, I had my 6th grade write, produce, create, record and perform a puppet production. This event was a big deal because we worked all year on it. When we would begin the project, I always suggested that we take a fairy tale or fable and rewrite it and one year we took The Boy Who Cried Wolf and made it into The Boy Who Cried and Cried and Cried. It was delightful and funny. (The picture here is the wolf the kids made.)
If we consider the original Boy Who Cried Wolf, the main problem was that this boy took away his own credibility by claiming over and over that there was a wolf set on attacking his sheep when there wasn’t one. As you know, when there actually was a wolf, no one believed him because of his foolish claims in the past. This is an excellent illustration of why Paul calls on God’s children to avoid “foolish talk.” Ephesians 5:3-7.
I do not think that this phrase means God expects his children to not have fun, be silly and laugh; instead, I think it is a warning that credibility is important. Say what you mean and mean what you say. If all you ever speak about are things that are silly and/or foolish, when you say something that needs to be voiced, few will listen to you.
Foolish talking is not a suitable partner.