This the prudent Virgin understood when to the prevenient grace of a gratuitous promise she joined the merit of her own prayer, saying: “Be it done unto me according to thy word.”
Be it done unto me concerning the Divine Word according to Thy word. May the Word which was in the beginning with God be made flesh of my flesh according to Thy word. May He, I entreat, be made to me, not a spoken word, to pass unheeded, but a word conceived—that is, clothed in flesh—which may remain. May He be to me not only audible to my ears, but visible to my eyes, felt by my hands, borne in my arms. Let Him be to me not a mute and written word traced with dumb signs on lifeless parchments, but an Incarnate, living Word vividly impressed in human form in my chaste womb by the operation of the Holy Ghost.
Be it done unto me as it has never hitherto been done to mortal, and never shall be done to any after my time. “God diversely and in many ways spoke in times past to the fathers by the prophets”1—to some in the hearing of the ears, while to others the word of the Lord was made known in signs and figures. Now in this solemn hour I pray that in my own being it may be done unto me according to Thy word.
Be it done unto me—not preached to me in the feeble strains of human eloquence, not shown forth to me in the figures of earthly rhetoric, not painted in the poetic dreams of a fervid imagination, but breathed upon me in silence, in person Incarnate, in a human form veritably reposing within me. In His own nature the Word needed not change, was incapable of change. Yet now graciously in me “may it be done according to thy word.” Be it done universally for all mankind, but most especially for me—” Be it done unto me according to thy word.”
Saint Bernard, Sermons of St. Bernard on Advent & Christmas: Including the Famous Treatise on the Incarnation Called “Missus Est” (London; Manchester; Glasgow; New York; Cincinnati; Chicago: R. & T. Washbourne; Benziger Bros., 1909), 71–72.