Therefore the Lord himself shall give you a sign; Behold, a virgin shall conceive, and bear a son, and shall call his name Immanuel. Isaiah 7:14

During the time of Isaiah, Israel was continually at war with each other. Jersulem was once again under siege and it says “the heart of the people were moved as trees with the wind” The people were scared they were either going to get killed or taken prisoner. 

Then God told Isaiah to go see King Ahaz and tell him “Take heed and be quiet, do not fear” God was in complete control yet Ahaz was a pagan, he didn’t truly have faith in God, so he lived in fear that his life was coming to an end

God even challenged Ahaz to ask him for a sign. King Ahaz refused to ask God for a sign, for fear of testing him. However it was also most likely due to hi unclean heart and guilty conscience, as it was documented the evil things Ahaz did, including sacrificing his own children to pagan gods (2 Kings 16:3, 2 Chronicles 28:3)

Therefore God himself declared he would give Israel a sign, the sign was a virgin will give birth to a son and his name is Immanuel.  Its amazing during Israel’s darkest moments, God gave them the good news of Jesus Christ coming to save the world of their sins

Now all this was done, that it might be fulfilled which was spoken of the Lord by the prophet, saying,Behold, a virgin shall be with child, and shall bring forth a son, and they shall call his name Emmanuel, which being interpreted is, God with us. Matthew 122-:23

The Apostle Matthew confirms this prophecy was fulfilled by Jesus Christ. The virgin is Mary, conceived by the Holy Spirit, and given birth to the Messiah, The Lord Jesus. Matthew also emphasizes the title Emmanuel means God with us. Meaning God becoming a man (John 1:14, Isaiah 9:6) and dwelling among us. This is the sign, the baby in the manger, the Christ child, The Lord Jesus

The sign was promised by God, foretold 700 years before the birth of Christ in the manger. Jesus Christ is our sign, our hope, our victory, Immanuel, Amen!