old, unregenerate nature. When we believe this lie, we have already lost the battle. In a few places in the New Testament, the word sarx, translated “flesh,” actually refers to literal muscle and bodily tissue. But most of the time, it has reference to that old nature of the unregenerate man, the indwelling dynamic of sin that responds to the external environment of the world. The flesh is self-serving and is susceptible to Satan’s temptation because it’s totally self-centered. Any attitude that