In my new book, Behold Your Mother - A Biblical and Historical Defense of the Marian Doctrines, I give eight reasons for belief in the Immaculate Conception: 1. Mary is revealed to be "full of grace" in Luke 1:28. 2. Mary is revealed to be the fulfillment of the prophetic "Daughter of Zion" of Zech. 2:10; Zeph. 3:14-16; Isaiah 12:1-6, etc. 3. Mary is revealed to be "the beginning of the new creation" in fufillment of the prophecy of Jer. 31:22. 4. Mary is revealed to possess a "blessed state" parallel with Christ's in Luke 1:42. 5. Mary is not...