Curses have real effects according to scripture. When Adam and Eve sinned, God cursed the ground and humanity experienced consequences like hardship and death. Other biblical figures like Cain were also cursed, and those curses affected future generations. Christians are warned against cursing, as what comes out of the mouth reveals what is in the heart. Believers are instead encouraged to use respectful and edifying speech with one another. Controlling cursing requires recognizing its effects and focusing on uplifting language aligned with faith.