How do we know Jesus is the great light?

In Matthew 4:16, Jesus is referred to as the 'great light' that came to those sitting in darkness. This designation fulfills the prophecy found in Isaiah 9:1-2, which foretold a light shining upon those in the shadow of death. Jesus's identity as the light is established not only through prophetic fulfillment but also through His own claims, as seen in John 8:12 where He declares, 'I am the light of the world.' His life, teachings, and ultimately, His sacrificial death and resurrection deliver and illuminate the way to salvation for those who believe.