Commentaries:
In the New Testament, the most common Greek word for self-control (temperance, KJV) is enkrateia. Its root meaning is "power over oneself" or "self-mastery." Self-control, in its widest sense, is mastery over our passions. It is the virtue that holds our appetites in check, controlling our rational will or regulating our conduct without being duly swayed by sensuous desires. Moderation is a key element in self-control.
Martin G. Collins
Self-Control