Matthew 1:18-25.

"Now the birth of Jesus Christ was as follows: After His mother Mary was betrothed to Joseph, before the came together, she was found with child of the Holy Spirit. Then Joseph her husband, being a just man, and not wanting to make her a public example, was minder to out her away secretly. But while he though about these things, behold, an angel of the Lord appeared to him in a dream, saying, 'Joseph, son of David, do not be afraid to take to you Mary as your wife, for that which is conceived in hear is of the Holy Spirit. And she will bring forth a Son, and you shall call His name Jesus, for He will save His people form their sins.' So all this was done that it might be fulfilled which was spoken by the Lord through the prophet, saying, 'Behold, the virgin shall be with child, and bear a Son, and they shall call His name Immanuel,' which is translated, 'God with us." Then Joseph, being aroused form sleep, did as the angel of the Lord commanded him and took to him his wife, and did not know her till she had brought forth he firstborn Son. And called His name Jesus."

God bless you.