Isaiah 7.13-15 cont.
 Then Isaiah said, “Listen well, you royal family of David! You aren’t satisfied to exhaust My patience. You exhaust the patience of God as well!
 All right then, the Lord Himself will choose the sign. Look! The virgin will conceive a child! She will give birth to a son and will call Him Immanuel—‘God is with us.’
 By the time this child is old enough to eat curds and honey, He will know enough to choose what is right and reject what is wrong.
The sign that King Ahaz was to receive was to be given by the Lord, and not by anyone else. The sign was something only God could do, it was not within the power of anyone else to do. The sign indicated the power and presence of God to deliver Ahaz and Judea from the attacks of the King of Aram and the King of Israel.
When Jesus came into His public ministry it was with signs that no one could do unless God was with Him.
Nicodemus recognised this when He said to Jesus: “Rabbi, we know that You are a teacher come from God, because no one could do the signs which You do if God is not with Him” – John 3.2.
Throughout his gospel John describes the works of Jesus as miraculous signs, meanings signs that can only be done in the power of God.
It was a miraculous sign that God was to give to King Ahaz.
God’s signs are given to us to build our faith in Him and His word. He does not need to prove Himself, but we need to be built up in our faith to know that He who promises is faithful.
The writer to the Hebrews tells us:
Let us hold unswervingly to the hope we profess, for He who promised is faithful – Hebrews 10.23 (NIV).
It is interesting to note that the word ‘virgin’ in Hebrews conveys the meaning of being hidden, something that is secret. Probably because the parents of a young woman, virgin, kept them behind closed doors, away from the gaze of men.
The symbolism is that the hidden things of God are revealed by Him at the right time. King Ahaz was privileged to receive the revelation of the hidden purposes of God regarding His future, and that of Judah.
Similarly it is in Jesus that God revealed His hidden plan of salvation. Jesus came into the world to proclaim the salvation of God, which had previously been hidden.
In Ephesians 1.9 Paul wrote:
so making known to us the mystery of His will, according to His kindly intent, which He purposed in Him.
Jesus is the supreme revealer of the hidden things of God.