How do we know Jesus is the Son of David?

Throughout the New Testament, Jesus is frequently called the Son of David, fulfilling the prophetic lineage established in the Old Testament. The genealogies given in Matthew 1:1-16 affirm His descent from David, while the angelic announcement to Mary in Luke 1:32 speaks of His reign over the house of Jacob. This fulfillment emphasizes God's sovereign choice in His redemptive plan, through which Jesus embodies the characteristics of David while being infinitely greater as both King and Savior.