How do we know Jesus is the Christ according to the Bible?

Jesus' identity as the Christ is affirmed through both the eyewitness accounts of His transfiguration and the fulfillment of Old Testament prophecies. Peter, James, and John witnessed His divine glory, which testified to His identity as the Son of God. Additionally, the gospel accounts make it clear that Jesus had to suffer and rise from the dead, which was essential to fulfill God's purpose in salvation. According to Mark 9:12, Jesus Himself stated that 'Elijah verily cometh first, and restoreth all things,' indicating that the role of John the Baptist was integral to the revelation of Christ. Understanding these prophetic fulfillments reassures believers of the authority and truthfulness of the scripture regarding Jesus' identity.