Isaiah 7:14,Therefore the Lord Himself, shall give you a sign, Behold a Virgin shall conceive and bear Son, And Shall call His Name Emmanuel. Matthew 1:18-20 Now the birth of Jesus Christ, was on this wise: When as His Mother Mary was espoused to Joseph, before they came to gather, she was found with child of the Holy Ghost.Then Joseph her husband,being a just Man, and not willing to make her a public example was minded to put her away secretly. But while he thought on these things, behold, an angel of the Lord appeared to him in a dream, saying, “Joseph, Do not be afraid to take to you Mary thy wife: For that which is conceived in her is of the Holy Ghost.[Jesus The promise Son.His Name shall be called Wonderful,Counselor, Mighty God, the Ever lasting Father,Prince of peace].
Matthew 1:21-23, And she shall bring forth a Son, and thou shall Call His Name JESUS: for He shall Save His people from there 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, being interpreted is God with us. Then Joseph raised from his sleep, did as the angel of the Lord, Commanded him; and took his wife, and knew her not till she brought forth her first born Son: And he Called His Name JESUS.[Joseph had questions, but was assured by God, though the angel, that this was the promise Son of God to the World. He believed God; and called His Name JESUS.