Why is belief in Jesus as the Messiah important for Christians?

For Christians, belief in Jesus as the Messiah is crucial because it directly relates to their identity and salvation. 1 John 5:1 highlights that 'whosoever believeth that Jesus is the Christ is born of God.' This belief recognizes Jesus as the fulfillment of Old Testament prophecy, the anointed one sent by God to save His people. It is through this faith that believers receive new life, adopted into God’s family, and gain the right to be called children of God. Furthermore, this belief encompasses acknowledging Jesus' roles as prophet, priest, and king, affirming His sovereignty and authority in all aspects of life.