How do we know the doctrine of Christ's incarnation is true?

The doctrine of Christ's incarnation is supported by profound scriptural evidence, particularly in the prophetic writings of the Old Testament and the testimonies found in the New Testament. For instance, Zechariah proclaims God's presence among His people, foreshadowing the coming of Christ. This prophecy is directly fulfilled in the New Testament accounts, particularly in the Gospels, which testify that Jesus is indeed the promised Messiah who came in the flesh. Additionally, the apostolic teachings, as seen in 1 John 4:2, indicate that every spirit that acknowledges Jesus Christ has come in the flesh is of God, reinforcing the necessity of this doctrine for true faith. Therefore, the alignment of prophecy, testimony, and theological necessity confirms the truth of Christ's incarnation.