How do we know Christ is the source of truth?

In the sermon, it is asserted that all truth is found in Christ; He states, 'I am the truth' (John 14:6). This claim affirms that apart from Him, no true knowledge of God exists. Believers are taught that understanding God transcends mere factual knowledge; it involves a relational knowledge revealed through Christ. His very nature embodies the characteristics of truth, ensuring that all wisdom and revelation derive from Him, making Him the cornerstone upon which our understanding of truth is built.