What does it mean that Jesus is the Son of the Living God?

When Peter proclaims Jesus as the 'Son of the Living God,' he acknowledges Jesus's unique relationship with the Father and His divine authority. This title encompasses the truth of the Trinity and reaffirms that Jesus is not merely a prophet but God incarnate. The concept of the 'Living God' contrasts Him with the dead idols of the time, emphasizing His active role in creation and redemption. In this acknowledgment lies the foundation of Christian faith, where understanding who Jesus is leads to recognizing the significance of His sacrificial atonement for sin and the hope of eternal life through Him, a core belief in historic Reformed theology.