Therefore the Lord Himself will give you a sign: Behold, the virgin shall conceive and bear a Son, and shall call His name Immanuel.
The virgin birth of Jesus is a revealed truth, the importance of which no one can properly appraise. Upon this fact hangs the whole plan of redemption. It tells us that God entered into human conditions, became man without ceasing to be God, took our flesh and blood apart from sin, in order that He might by Himself effect the purging of sins by dying upon the cross. With the denial of the virgin birth goes the denial of the true vicarious atonement of Christ.
Had He been a member of Adam’s fallen race He would have needed a Savior for Himself. As the virgin-born Son of the Father He came into the world as “that holy One” uncontaminated by sin in the flesh, though in its likeness, and so was able to qualify as our Kinsman-Redeemer.
Though in the very form of God,
With heavenly glory crowned,
Thou didst a servant’s form assume,
Beset with sorrow round.
Thou wouldst like wretched man be made
In ev’ry thing but sin,
That we as like Thee might become
As we unlike had been.
H. A. Ironside, The Continual Burnt Offering: Daily Meditations on the Word of God (Neptune, NJ: Loizeaux Brothers, 1994), 116.