The Character of Apostolic Doctrine
doctrine does what no human philosophy can accomplish: it performs spiritual surgery. It cuts, it reveals, it convicts, and then it heals.
This is why Paul warns that a time will come when people "will not endure sound doctrine" (2 Timothy 4:3). The reason is clear: people with a diseased moral condition resent the physician who prescribes the cure because they love their disease. They accumulate teachers who will tell them what their itching ears want to hear rather than what their souls need to hear. The intolerance of sound doctrine is always a symptom of a deeper spiritual pathology. It indicates a rejection of the cure in favor of the cancer.
The health metaphor extends further. Just as physical health requires a consistent diet rather than sporadic meals, so spiritual health requires consistent instruction in sound doctrine. One meal does not produce lasting health, nor does occasional exposure to biblical teaching produce doctrinal stability. The church that experiences vitality is the church that sits faithfully under the regular, systematic exposition of the whole counsel of God. It is nourished up in the words of faith and of good doctrine.
The Character of Apostolic Doctrine Biblical doctrine is not only sound in its effect; it possesses certain inherent qualities that mark it as authentic. Titus 2:7 provides a threefold description