Now let's look at the issue of blessed mother's sinless nature. Consider that when the angel addresses the blessed mother at the annunciation, the greeting is almost a name change:
"Hail, thou that art highly favored, the Lord is with thee: blessed art thou among women" (Luke 1:28, KJV).
Mary (Miriam in Hebrew) means "beloved." In biblical times a person's name reflected what they were. Name changes have great theological significance in the Bible and this is almost as if her name is being changed from "beloved" to "thou that art highly favored." Since this is before Jesus has been conceived, to what is the angel referring? No doubt to her singular devotion to God, forsaking all earthly distractions and desecrations, and the fact that she had been conceived without sin in preparation for this event.
Being conceived without sin does not mean that the blessed mother had no need of a redeemer. In fact, like every descendant of Adam, the blessed mother had vital need of a redeemer. The blessed mother's freedom from original sin was an unmerited gift of God in that she was redeemed by Christ at the moment of her conception. It is at the moment of conception that God creates the soul and hers was created in a state of sanctifying grace. If you had the opportunity to create your mother, wouldn't you make her perfect in every way? This is why there are the doctrines of the perpetual virginity and Immaculate Conception of Mary.
Jesus refers to the blessed mother's sinless nature when He addresses her as "woman" in John 2:4 and 19:26. Today, one looks at Him addressing her in this manner and thinks this is disrespectful or that He is admonishing her. In fact, the blessed mother was not the first sinless woman, Adam's wife was also created sinless. When she was first created, Adam named her "woman" (Genesis 2:23). It was after the fall, when she was no longer sinless, that her name was changed to "Eve" (Genesis 3:20). By referring to the blessed mother as "woman," Jesus is recognizing her sinless nature. Like I said earlier, name changes in Holy Scripture are important.