What does the Bible say about the virgin birth?

The virgin birth of Jesus is a central tenet of Christian faith rooted in prophetic scripture. Isaiah 7:14 declares, 'Therefore the Lord himself shall give you a sign; Behold, a virgin shall conceive, and bear a son, and shall call his name Immanuel.' This prophecy highlights the miraculous nature of Christ's birth and underscores the doctrine of the hypostatic union, where Jesus is fully God and fully man. This unique birth signifies not only the fulfilment of God's promises concerning the Messiah but also affirms the sinless nature of Christ, differentiating Him from all humanity born in sin due to Adam's fall. Through the virgin birth, God demonstrates His ability to intervene supernaturally in human affairs for the purpose of salvation.