"Doctrine means teaching. Christ's talk to the multitudes on the mount is
called doctrine, because "He opened His mouth and taught them." (Matt. 5:2).
---Some
people express a sort of contempt for doctrine; they speak slightingly
of it, as though it belonged to the realm of abstruse theology, and not
to practical, every-day life.
Such ones unconsciously do dishonor to the
preaching of Christ, which was nothing else but doctrine.
That is to
say, He always taught the people.
All true doctrine is intensely
practical;
it is given to men for no other purpose than to be practiced."
E.J. Waggoner