Matthew 1:20-23

20but while he pondered on these things, behold, an angel of [the] Lord appeared to him in a dream, saying, Joseph, son of David, fear not to take to [thee] Mary, thy wife, for that which is begotten in her is of [the] Holy Spirit.

21And she shall bring forth a son, and thou shalt call his name Jesus, for he shall save his people from their sins.

22Now all this came to pass that that might be fulfilled which was spoken by [the] Lord, through the prophet, saying,

23Behold, the virgin shall be with child, and shall bring forth a son, and they shall call his name Emmanuel, which is, being interpreted, 'God with us.'