A.W. Tozer addresses the complexities of modern Christianity, cautioning against oversimplifying the church's issues by attributing them to a single cause. He emphasizes that the decline of true Bible religion is evident, yet identifying the root cause is challenging due to the interrelated nature of spiritual ailments. Tozer highlights a critical deficiency in the church: the lack of spiritual discernment among its leaders, suggesting that this lack may be the key to understanding and addressing the broader spiritual troubles faced by evangelical Christians today.