Zac Poonen emphasizes that a true spiritual leader must have a profound fear of God, which is essential for imparting wisdom to others. He argues that knowledge alone is insufficient for effective leadership; it is the fear of the Lord that lays the foundation for wisdom and maturity. Poonen critiques modern seminaries for prioritizing degrees over spiritual reverence, urging leaders to teach the fear of God as the primary lesson. He illustrates that wisdom, guided by divine love, is crucial for leading a congregation effectively, contrasting it with mere knowledge that lacks practical application. Ultimately, he calls for a revival of the fear of the Lord in preaching to cultivate wise and mature believers.