How do we know that Jesus is the key of knowledge?

In Luke 11:52, Jesus accuses the lawyers of having taken away the key of knowledge. The 'key of knowledge' refers to the understanding of God's truth as revealed in Scripture, primarily focusing on the person and work of Christ. Without acknowledging Jesus as the central figure in redemption, individuals cannot comprehend God's will or the path to salvation. Christ is essential for understanding life and truth, as He is 'made unto us wisdom and truth.' Thus, true knowledge and spiritual understanding stem from a relationship with Jesus, who is revealed in the Scriptures as the Savior and the fulfillment of God's promises.