Why is the concept of Jesus as Immanuel important for Christians?

The name Immanuel means 'God with us' and is foundational to Christian faith, as spoken in Isaiah 7:14 and realized in the New Testament. This title encapsulates the mystery of the incarnation, where God Himself entered history to dwell among humanity. It emphasizes that salvation is not just an abstract concept but a personal relationship with God through Christ. For Christians, knowing that God is with us through Jesus assures us of His constant presence, guidance, and active involvement in our lives, as He fulfills His promise of salvation.