Categories faith life Is it a SIN for Christians to have sex on Sunday (within Marriage)? Post author By Jody Post date May 12, 2019 10 Comments on Is it a SIN for Christians to have sex on Sunday (within Marriage)? Is it a SIN to have sex on Sunday (within Marriage)? I am struggling with a sin,” he confessed. “I am tempted to have sex with my wife on the Lord’s Day.” Tags Christian, God, Is it a SIN to have sex on Sabbath, Is it a SIN to have sex on Sunday, Love, Sex on Saturdays, Sex on Sundays, Sin