What Does Matthew 7:12 Mean?

The birth of Jesus Christ is on this wise: His mother Mary is espoused to Joseph, but before they come together, she is found with child of the Holy Ghost. Joseph, being a just man and not willing to make her a publick example, is minded to put her away privily. But while he thinks on these things, an angel of the Lord appears to him in a dream, saying, Fear not to take unto thee Mary thy wife: for that which is conceived in her is of the Holy Ghost. The angel saith she shall bring forth a son, and Joseph shall call his name JESUS, for he shall save his people from their sins. Joseph, being raised from sleep, does as the angel had bidden him and takes unto him his wife, but knows her not till she has brought forth her firstborn son. Matthew 2: The Wise Men and the Flight to Egypt When Jesus is born in Bethlehem of Judaea in the days of Herod the king, there come wise men from the east to Jerusalem, saying, Where is he that is born King of the Jews? for we have seen his star in the east, and are come to worship him. When Herod the king hears these things, he is troubled. He gathers the chief priests and scribes and demands of them where Christ should be born. They say unto him, In Bethlehem of Judaea. Herod privily calls the wise men and sends them to Bethlehem to search for the young child, telling them to bring him word again, that he may come and worship him also. The star goes before them until it stands over where the young child is. They rejoice, and entering the house, they see the young child with Mary his mother, and fall down and worship him, presenting him with gifts. Being warned of God in a dream not to return to Herod, they depart into their own country another way.