“neither filthiness, nor foolish talking, nor coarse jesting, which are not fitting, but rather giving of thanks.” Ephesians 5:4
An easy way for people to know whether we love God or not is how we talk. If we use filthy words, people will think we do not love God.
When Peter denied that He knew Jesus, he “cursed and swore” that He did not know Him. Peter tried to prove that he had not been with Jesus and used filthy language to prove it. If people didn’t think Peter was with Jesus because of the way he spoke, what if we use bad language?
Imagine going to get a drink out of a water fountain. The person in front of you says, “Mmm, that water is good.” You get a drink of water and it tastes salty and bad! You try to drink again and it is delicious. James says that people who love God are not to be like this. He says that a spring of water does not give sweet and bitter water from the same opening, so Christians should not speak good things about others and bad things as well. We must control our tongues.
The memory verse says to put off:
Filthiness—Dirty talk coming from a dirty mind.
Foolish talking—Talking about things one should not talk about.
Coarse Jesting—Dirty jokes, joking about good things.
Paul says this is not proper for people who love God. We should speak good things that please God.