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Notable quote from this video:
And think about this for a second, the star in the heavens, which is kind of like the book of creation, so the Magi are reading the book of creation and it gives them some guidance, but then the other is the city of Bethlehem which they read about in the book of the Scriptures. So these two books, the book of creation and the book of the Scriptures, need to be read together in order for the Magi to find the Christ child, in order for them to find the one who has been born, the King of the Jews. So the book of nature gets them so far, it gets them to Jerusalem, but they need the Scriptures to finally locate the true Messiah, to locate the King.