
The Old Testament book of Isaiah is abundant with prophetic references---many of them pointing to Jesus Christ as the Messiah. Here are just a few of the proofs we have for Christ as God as prophesied by Isaiah, more than 600 years before Jesus walked the Earth!
The Virgin Birth/Jesus called Immanuel
Isaiah 7:14:"Therefore the Lord Himself will give you a sign: Behold a virgin will be with child and bear a son, and she will call His name Immanuel"
This is fulfilled in Matthew 1:20-23. Joseph was visited in a dream by an angel quoting the verse from Isaiah. His soon-to-be-wife was the prophesied virgin. "Immanuel" means "God with us". Like the names given for Messiah in Isaiah 9:6 (Wonderful Counselor, Prince of Peace, etc.), Jesus wasn't actually given the name "Immanuel" as his birth name. This is not what the passage means. Instead, it is saying that this is a term people will use to reference Jesus for the rest of eternity. People will say that Jesus is God in the flesh--God with us.