This class explores the biblical definition of wisdom as the fear of the Lord and the proper application of knowledge, contrasting it with the various forms of foolishness. The teaching identifies three distinct types of fools: the simpleton, who is naive and easily deceived; the scoffer, who rejects correction with pride; and the obstinate fool, who is morally stubborn and restless. Through passages in Proverbs and 1 Corinthians, the message emphasizes that true wisdom involves accepting God's discipline and submitting to His revelation rather than trusting in one's own understanding. The sermon concludes by urging believers to build their lives on the solid foundation of Christ's words, ensuring stability and confidence in a chaotic world.