How do we know Jesus was the Son of David?

In the Gospels, particularly in Matthew 1:1, Jesus is explicitly identified as the Son of David, linking Him to David's royal lineage. This title signifies not just His family relationship but also His role as the promised Messiah who fulfills the covenantal promises made to David. Additionally, the blind men in Matthew 9:27 and 20:30 acknowledge Jesus as the Son of David, indicating recognition of His messianic identity. This connection reinforces the biblical teaching that Jesus embodies the fulfillment of the Old Testament prophecies concerning the Davidic line.