Theophylact of Ohrid
Catena Aurea · Lukasevangelium 1
And Mary arose in those days, and went into the hill country with haste, into a city of Juda; And entered into the house of Zacharias, and saluted Elisabeth. And it came to pass, that, when Elisabeth heard the salutation of Mary, the babe leaped in her womb; and Elisabeth was filled with the Holy Ghost: And she spake out with a loud voice, and said, Blessed art thou among women, and blessed is the fruit of thy womb. And whence is this to me, that the mother of my Lord should come to me? For, lo, as soon as the voice of thy salutation sounded in my ears, the babe leaped in my womb for joy. And blessed is she that believed: for there shall be a performance of those things which were told her from the Lord.
But because there have been other holy women who yet have borne sons stained with sin, she adds, And blessed is the fruit of thy womb. Or another interpretation is, having said, Blessed art thou among women, she then, as if some one enquired the cause, answers, And blessed is the fruit of thy womb: as it is said, Blessed be he that cometh in the name of the Lord. The Lord God, and he hath shewed us light; (Ps. 118:26, 27.) for the Holy Scriptures often use and, instead of because.