A.W. Tozer emphasizes the urgent need for spiritual diagnosis within the church, urging believers to question the underlying reasons for the current religious activities rather than simply observing them. He points out that many Christians are unaware of the true state of their faith and the relationship between God and their actions, likening the situation to the complacency of Judaism before Christ. Tozer calls for prophetic insight to discern the present spiritual condition, as historical knowledge alone is insufficient for understanding the current state of Christianity. He stresses that it is crucial for believers to seek clarity and understanding in their faith now, rather than waiting for future historians to analyze the past.