The Authority of Sound Doctrine
condemned because their didaché produced fornication and idolatry.
Conversely, Titus 2:1 connects "sound doctrine" to self-controlled, dignified, and godly living. The claim that doctrine is impractical is a denial of the New Testament's own logic. The didaché is the mold that shapes the believer's life. A distorted mold produces a distorted life.
4. The Church Is the Pillar and Ground of the Doctrine 1 Timothy 3:15 calls the church "the pillar and ground of the truth." The truth in view is the didaché summarized in the subsequent verses concerning Christ. The church does not create the doctrine, but it supports and displays it. It is the conservator and herald of the didaché delivered to the saints. This is why the qualifications for an elder in Titus 1:9 focus on his relationship to "the faithful word" and "sound doctrine." The primary task of church leadership is to feed the flock with the didaché and to protect the flock from any didaché that deviates from it.
The Authority of Sound Doctrine The New Testament does not present doctrine as an open question for each generation to redefine. It is a "good deposit" to be guarded, a "pattern of sound words" to be retained, and a "form" to be obeyed. The authority of didaché is the authority of God Himself. This authority confronts three modern errors.
The first error is doctrinal relativism . This view suggests that doctrine is culturally conditioned and therefore negotiable. But the New Testament writers treat the didaché as a fixed and final revelation. Jude 3 speaks of "the faith which was once for all delivered unto the saints." The phrase
"once for all" — hapax — is decisive. It is not being delivered anew in each age. The task of each generation is stewardship, not authorship.
The second error is doctrinal minimalism . This view reduces the essential didaché to a few broad principles in the name of unity. Yet 2 John 9-10 draws a sharp line of fellowship around the "doctrine of Christ," which includes His incarnation, His work, and His commands. Hebrews 6:1-2 lists six elementary doctrines, indicating that the foundation itself has breadth.