Isaiah Chapter 7 is called "The Sign of Immanuel".
Isaiah 7:14 Therefore the Lord himself will give you a sign: The virgin will conceive and give birth to a son, and will call him Immanuel.
Matthew 1:23
The virgin will conceive and give birth to a son, and they will call him Immanuel (which means “God with us”).
This is the bridge from the Old Testament to the New Testament.
I 7:14
M 1:23
I am 14:7, I am 1:23, I am,always right.