How do we know that Christ's words and works reveal His identity?

In John 10:25, Jesus responds to a challenge about His identity by stating, 'I told you, and you believe not: the works that I do in my Father's name, they bear witness of me.' This indicates that both His teachings and His miraculous works serve as proof of His messianic identity. Throughout the Gospel of John, His omniscience and miraculous healings, such as those of the blind man, provide undeniable evidence that He is indeed God incarnate. In John 5:36, He similarly emphasizes that His works serve as testimony to His divine mission and identity, proving that He is the one who came to save humanity.