Mary was engaged to a man named Joseph. (This man was also a descendant of Abraham.) But Joseph discovered that Mary was pregnant and he decided not to marry her. Then the angel appeared to Joseph in a dream and said, "Do not be afraid to take Mary as your wife, because the baby in her is from the Holy Spirit of God. She will have a son, and you are to give Him the name Jesus, because He will save His people from their sins." The name "Jesus" means Saviour.