Isa 9:6, Isa 7:14, Mt 1:16, Gal 4:4, Mt 1:22-23
The Old Testament prophesied that Christ would be born. (Isa 9:6, Isa 7:14, Mt 1:22-23)
Isa 9:6 For unto us a child is born, unto us a son is given: and the government shall be upon his shoulder: and his name shall be called Wonderful, Counsellor, The mighty God, The everlasting Father, The Prince of Peace.
Isa 7:14 Therefore the Lord himself shall give you a sign; Behold, a virgin shall conceive, and bear a son, and shall call his name Immanuel.
Mt 1:22 Now all this was done, that it might be fulfilled which was spoken of the Lord by the prophet, saying, 23 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.
Christ was born to save us on this earth. Jesus is the Christ. (Lk 2:10-11, Mt 1:16, Gal 4:4)
Lk 2:10 And the angel said unto them, Fear not: for, behold, I bring you good tidings of great joy, which shall be to all people. 11 For unto you is born this day in the city of David a Saviour, which is Christ the Lord.
Mt 1:16 And Jacob begat Joseph the husband of Mary, of whom was born Jesus, who is called Christ.
Gal 4:4 But when the fulness of the time was come, God sent forth his Son, made of a woman, made under the law,