Bede the Venerable
Catena Aurea · Lukasevangelium 2
And it came pass, as the angels were gone away from them into heaven, the shepherds said one to another, Let us now go even unto Bethlehem, and see this thing which is come to pass, which the Lord hath made known unto us. And they came with haste, and found Mary and Joseph, and the babe lying in a manger. And when they had seen it, they made known abroad the saying which was told them concerning this child. And all they that heard it wondered at those things which were told them by the shepherds. But Mary kept all these things, and pondered them in her heart. And the shepherds returned, glorifying and praising God for all the things that they had heard and seen, as it was told unto them.
Again, the shepherds of the Lord’s flock by contemplating the life of the fathers who went before them, (which preserved the bread of life,) enter as it were the gates of Bethlehem, and find therein none other than the virgin beauty of the Church, that is, Mary; the manly company of spiritual doctors, that is,Joseph; and the lowly coming of Christ contained in the pages of Holy Scripture, that is, the infant child Christ, laid in the manger.