Is temperance just about not drinking alcohol?
No, temperance is not limited to abstaining from alcohol. It spans the whole spectrum of human activity and means maintaining balance in whatever you do, according to the Word of God. As a fruit of the Spirit, it pleases God by keeping a person from flipping to either extreme.
Les explains that in America people often think of temperance only as the fight against alcohol and whiskey, but that is not its full meaning. He teaches that temperance goes across the whole spectrum of human activity and simply means maintaining a balance. It is not about flipping over to the right or to the left; rather, by the basis of the Word of God, a believer maintains balance. He also lists temperance among the nine fruits of the Spirit, and Paul says, against such there is no law. These graces are well pleasing in God's sight.
Meekness, temperance: against such there is no law.