“Holding fast the faithful word as he hath been taught, that he may be able by sound doctrine both to exhort and to convince the gainsayers.” (Titus 1: 9)
“But speak thou the things which become sound doctrine:” (Titus 2:1)
Doctrine is important. We live in a time when it seems that doctrine is shoved back into the background of our faith; it seems that we sacrifice doctrine for other truths, and overlook the value and importance of sound doctrine. Our doctrine determines much of what we do, what we say, and what we become in the Christian life, and ultimately it reflects the true “us”. You see, our creed determines what we think, and that determines what we do. So then our creed determines our conduct; our conduct determines what we do; and our character determines what we are. Here is the order of our lives:
Our creed: (What we believe) this determines our actions, or what we do;
Our conduct: (This is what we do, and is determined by what we believe.);
Our character: (This is what we are, in secret, when no one else is around. Our character is revealed much by our conduct)
This is the sum of our doctrine, and hopefully shows the true value of truth and the belief in the all the teachings and disciplines of the Bible.
Source: Sound Doctrine