How do we know Jesus is God with us?

The prophecy found in Isaiah 7:14 is a clear declaration that God would manifest Himself in the flesh through the incarnation of Christ. The passage states, 'Behold, a virgin shall conceive and bear a son, and shall call his name Emmanuel,' which translates to 'God with us.' This prophecy emphasizes not only the miraculous nature of Christ's birth but also His divine identity as God incarnate. In the New Testament, this claim is validated through interpreted fulfillment; Matthew references this prophecy to demonstrate that Jesus is indeed Emmanuel, fulfilling the Old Testament's promise of God residing with humanity.