How do we know Christ is the Prophet mentioned in Deuteronomy?

In Deuteronomy 18:15, God says He will raise up a Prophet from among the people, and this refers explicitly to Jesus Christ. He is the ultimate Prophet who not only speaks the words of God but embodies them. Christ preached the Gospel, as seen in Matthew 4, wherein He proclaiming God’s Kingdom and teaching with authority. As mentioned in Luke 4, Jesus quoted Isaiah, declaring that His mission was to bring good news and healing—confirming His identity as God’s promised Prophet. His authority and the message of salvation affirm His role as the true Prophet.