Is it a sin to swear?

How do we stop cursing when our daily frustrations constantly trigger our worst verbal habits? Looking at Ephesians 4:29 and cussing helps us understand the heavy tension we feel in our daily speech. When we read James 3 and see the sharp contrast between fresh springs and salt water, it forces us to evaluate our own habits. Jesus taught in Luke 6:45 that our words simply overflow from whatever fills our minds, bringing our hidden struggles into the light. We can sit together and find genuine hope for changing our vocabulary by trusting God to transform our hearts.

Source Article: https://www.gotquestions.org/cussing-swearing.html